World War II, 1939–45
War once again broke out over nationality conflicts in east-central Europe, provoked in part by a German drive for continental hegemony, and it expanded, once again, into a global conflict whose battle zones touched the waters or heartlands of almost every continent. The total nature of World War II surpassed that of 1914–18 in that civilian populations not only contributed to the war effort but also became direct targets of aerial attack. Moreover, in 1941 the Nazi regime unleashed a war of extermination against Slavs, Jews, and other elements deemed inferior by Hitler’s ideology, while Stalinist Russia extended its campaign of terror against the Ukrainians to the conquered Poles. The Japanese-American war in the Pacific also assumed at times the brutal aspect of a war between races. This ultimate democratization of warfare eliminated the age-old distinction between combatants and non-combatants and ensured that total casualties in World War II would greatly exceed those of World War I and that civilian casualties would exceed the military.
Once again the European war devolved into a contest between a German-occupied Mitteleuropa and a peripheral Allied coalition. But this time Italy abandoned neutrality for the German side, and the Soviet Union held out in the east, while France collapsed in the west. Hence Soviet dictator Joseph Stalin took France’s place in meetings of the “Big Three,” together with Franklin Roosevelt and Winston Churchill. The Japanese chose to remain neutral vis-à-vis the U.S.S.R., while the Grand Alliance of anti-Fascist states simmered with conflicts over strategy and war aims. World War II, therefore, comprised several parallel or overlapping wars, while the war in Europe became a kind of three-way struggle among the forces of democracy, Nazism, and Communism. As soon as German and Japanese power were effaced, the conflicts among the victors burst into the open and gave birth to the Cold War. World War II completed the destruction of the old Great Power system, prepared the disintegration of Europe’s overseas empires, and submerged Europe itself into a world arena dominated by the Soviet Union and the United States.
The last European war, 1939–41
Poland and the northern war
At first glance Germany might have seemed the underdog in the war launched by Hitler. The Wehrmacht numbered 54 active divisions, compared to 55 French, 30 Polish, and two British divisions available for the Continent. But the combination of German Blitzkrieg tactics, French inactivity, and Russian perfidy doomed Poland to swift defeat. The German army command deployed 40 of its divisions, including all six panzer (armoured) divisions and two-thirds of its 3,500 aircraft in the east. The so-called Siegfried Line in the west, manned by 11 active divisions and reserve units as they became available, sufficed to block a French advance. Beginning on September 1, 1939, General Fedor von Bock’s northern army corps pinched off the Polish Corridor from East Prussia and Pomerania, while General Gerd von Rundstedt’s more powerful southern army corps drove across the border from Silesia and Slovakia. Polish Marshal Edward Śmigły-Rydz tried vainly to defend Poland’s industrial regions along the frontier, increasing his army’s vulnerability to Blitzkrieg. German tanks quickly burst into the rear, while dive-bombing Stukas disrupted Polish supply and reinforcements. The Polish air force was destroyed in 48 hours. Within a week two panzer corps advanced 140 miles to the outskirts of Warsaw and the Bug River line to the south. Śmigły-Rydz’s order for a general retreat on the 10th came too late; most Polish forces were already outflanked on the north by General Heinz Guderian’s rapid thrust to Brest-Litovsk and on the south by Paul von Kleist’s panzers advancing from Lvov. On September 17 the pincers closed, the Soviet army invaded from the east, and the Polish government fled to Romania, whence it made its way to London as the first of many European governments-in-exile. The Warsaw garrison surrendered on the 27th.
In a protocol of May 15, 1939, the French had promised to take the offensive two weeks after mobilization. Instead, General Maurice Gamelin contented himself with a brief sortie into the Saar, after which the French withdrew to the Maginot Line. The regime most upset by the German walkover in Poland was Hitler’s new ally, the Soviets. On September 10, Stalin ordered partial mobilization and loudly boasted of the Red Army’s “three million men.” Since a callup of reserve troops was scarcely needed merely to occupy Moscow’s share of Poland under the German-Soviet pact, this maneuver must have reflected Stalin’s fear that the Germans might not stop at the prearranged line. Stalin told the German ambassador on September 25: “In the final settlement of the Polish question anything that in the future might create friction between Germany and the Soviet Union must be avoided.” Three days later Molotov signed a new agreement granting Germany a somewhat larger share of Poland as well as extensive Soviet trade in return for a free hand in Lithuania. Only after this second German-Soviet pact did Communist parties in the West fully embrace their new Nazi ally and oppose Western military resistance to Hitler. Henceforth, Stalin was a fearful and solicitous neighbor of the Nazi empire, and he moved quickly to absorb the regions accorded him. By October 10, Latvia, Lithuania, and Estonia had been forced to accept Soviet occupation. When Finland resisted Soviet demands for border rectifications and bases, Stalin ordered the Red Army to attack on November 30. He expected a lightning victory of his own that would impress Hitler and increase Soviet security in the Baltic. Instead, the Finns resisted fiercely in this “Winter War,” holding the fortified Mannerheim Line in the south and cutting off the road-bound Soviet columns in the north with their mobile ski troops. The disorganized Red Army, by contrast, showed the effect of the recent military purges. In some cases only the machine guns of NKVD (political police) units kept the soldiers at the front. Soviet military prestige suffered a devastating blow.
No major fighting broke out in the West during this period, sardonically dubbed the “Sitzkrieg,” or “Phony War.” After the fall of Poland, while hope still existed that a repetition of World War I might be avoided, Hitler sought to persuade Britain to renege on its commitment to Poland’s defense. In secret contacts and in his “Peace Address” to the Reichstag of October 6 he even hinted at the possibility of restoring a rump Polish state. The Chamberlain Cabinet, betrayed so often by Hitler, refused to acknowledge the demarches, however, and Hitler ordered preparations for an attack in the west by November 12. The army high command protested vigorously against a winter campaign, and bad weather did force a postponement first to January 1940 and then to the spring. Since the French and British were loath to take initiative, the Phony War dragged on. Gamelin’s lame proposal of an advance through the Low Countries was moot given the Dutch and Belgian commitments to neutrality. Combat occurred only at sea. In 1939 alone Germany’s U-boats sank 110 merchant vessels as well as the aircraft carrier Courageous (September 17) and the battleship Royal Oak (October 14). The battle cruisers Scharnhorst and Gneisenau and pocket battleship Deutschland eluded British pursuit and returned safely to port. The Graf Spee, however, caught in the South Atlantic, sank nine merchantmen before sustaining damage from British cruisers. It then put in at Montevideo, Uruguay, causing a diplomatic crisis for the South American states. The naval situation, therefore, came quickly to resemble that of World War I, with the British fleet maintaining a distant blockade in the North Sea and the Germans waging a submarine war against British shipping.
The Russo-Finnish War, however, suggested that Scandinavia might provide a theater in which to strike a blow at the German-Russian alliance. Beyond the feckless expulsion of the Soviet Union from the League of Nations on December 14, Britain and France contemplated helping the brave Finns—even at the risk of war with Russia—and perhaps cutting the flow of Swedish iron to Germany. The French wanted to send several divisions to Narvik in Norway and thence by land to Finland. The British demurred at such a violation of neutral rights, but Churchill, now first lord of the Admiralty, insisted that “humanity, rather than legality, must be our guide.” In the event, the Allies dithered (as did the United States, which debated granting a loan to Finland, the only nation to pay interest on its World War I debt) until a massive Soviet offensive broke the Mannerheim Line in February. Stalin had given a hint of the future by setting up a Finnish Democratic Republic during the war, under the Comintern agent Otto Kuusinen, but he settled for a treaty with Helsinki on March 12, 1940, in which Finland ceded the Karelian isthmus and leased a naval base to the U.S.S.R. on the Hangö peninsula.
The Finnish fiasco toppled Daladier’s government in favor of a Cabinet under Paul Reynaud. He and Neville Chamberlain hoped at least to deny the Germans possible U-boat bases by mining or occupying Norwegian ports. But the German navy, too, had persuaded Hitler of the strategic importance of Norway, and on April 9, the day after British minelaying began, the Germans suddenly seized the ports from Oslo to Narvik in a brilliant sea and air operation, and occupied Denmark by Blitzkrieg. British troops contested Norway and managed to capture Narvik on May 27, but by then greater events were unfolding on the Continent. The British evacuated Narvik on June 6, and Vidkun Quisling’s collaborationists assumed control of Norway.
The Western front
The Allies’ bungling in Scandinavia lost Chamberlain the confidence of Parliament, and King George VI selected Winston Churchill to head the War Cabinet. In the first of many ringing speeches that would sustain the British spirit, Churchill told his nation: “I have nothing to offer but blood, toil, tears, and sweat.”
In eight months of warfare all the belligerents had vastly expanded their frontline strength. In May 1940 the German army concentrated 134 divisions on the Western front, including 12 panzer divisions, 3,500 tanks and 5,200 warplanes. The French army totalled 94 divisions, the British 10, and the neutral Belgians and Dutch 22 and eight respectively. The French army possessed some 2,800 tanks, but less than a third were concentrated in armoured units. The French air force, disrupted during the Popular Front, was in any case antiquated, and 90 percent of the artillery dated from World War I. More important, French morale was low, sapped by the memory of the first war’s carnage, by political decadence, and by over-reliance on the Maginot Line. Britain’s Royal Air Force had become a prodigious force thanks to 1,700 new planes, but commanders were loath to deflect them from home defense to the Continent. The German plan of attack in the west, meanwhile, had evolved since the previous autumn. Originally favoring a Schlieffen-type attack with the mass concentrated on the right wing in Belgium, the Führer had been won to General Erich von Manstein’s scheme for a panzer attack through the rugged Ardennes Forest of southern Belgium and Luxembourg. Either route bypassed the Maginot Line, but the latter plan took advantage of the panzer army’s ability to pierce French defenses, disrupt the enemy rear, and split Allied forces in two. The concomitant risk was that Allied counterattacks might pinch off and destroy the armoured spearheads at a blow.
The German offensive struck with devastating effect on May 10. Within days the Dutch surrendered. Göring’s Luftwaffe did not get the message and proceeded to devastate the central city of Rotterdam, killing numerous civilians and sending a signal to the city of London. Meanwhile, General Gerd von Rundstedt’s panzer army picked its way through the Ardennes and emerged in force at Sedan. By May 20, German tanks reached the coast at Abbeville and cut the Allied armies in two. On the 28th, King Leopold III instructed the Belgian army to surrender, while the British government ordered Lord Gort, commanding the British Expeditionary Force, to make for Dunkirk and prepare for evacuation by sea.
As the Blitzkrieg in Poland had shocked Stalin, so the German victory in France shocked Mussolini. For 17 years he had preached the necessity and beauty of war, believing that a neutral Italy would cease to be regarded as a Great Power and that he needed war in order to fulfill his expansionist fantasies and permit the full triumph of Fascism at home. Yet in August 1939 he demanded from Germany 6,000,000 tons of coal, 2,000,000 tons of steel, and 7,000,000 tons of oil before he could honour the Pact of Steel. In fact, war preparations under the corrupt and incompetent Fascists remained feeble, and during these months of nonbelligerence, Mussolini himself took sick and at times even considered joining the Allies. On March 18 he met Hitler at the Brenner Pass and was told that the Germans did not need him to win the war but that he would be allowed to participate and thus escape second-rate status in the Mediterranean. Still Mussolini tried to have it both ways, telling his military chiefs that Italy would not fight Hitler’s war, but a “parallel war” to forge “a new Roman Empire.” In reality, he would enter the war only when it seemed clear the Allies were finished and his regime would not be put to the test.
That moment seemed to arrive in June 1940. With French defeat assured, Mussolini declared war on France and Britain on the 10th. “The hand that held the dagger,” said President Roosevelt, “has struck it into the back of its neighbor.” As Mussolini put it to Marshal Pietro Badoglio, “All we need is a few thousand dead” to win a place at the peace conference. The Italian offensive on the Alpine front met contemptuous resistance from the French—Italy’s gains were measured literally in yards—but Mussolini was right about the proximity of victory. With German forces streaming east and south, the French government fled on the 11th to Bordeaux and debated three courses of action: request an armistice; transfer the government to North Africa and fight on from the colonies; ask Germany for its terms and temporize. The choice was complicated by a French promise to Britain not to exit the war without London’s consent. Churchill, concerned that the French fleet not fall into German hands, went so far as to offer Anglo-French political union on June 16. Reynaud wanted to continue the war but was outvoted. He resigned on the 16th, whereupon the ancient Marshal Pétain asked for an armistice. From London, General Charles de Gaulle broadcast a plea to the French people to fight on and set about organizing Free French forces in France’s sub-Saharan colonies. But the armistice was signed at Compiègne, in the same railway car used for the German armistice of 1918, on June 22. The Germans occupied all of northern France and the west coast—60 percent of the country—and the rest was administered by Pétain’s quasi-Fascist collaborationist regime at Vichy. The French navy and air force were neutralized. In another meeting of dictators on the 18th, Hitler disappointed Mussolini with his talk of a mild peace lest French forces be driven to defect to Britain. Instead, Pétain broke relations with London on July 4, following a British attack on the French fleet moored at Mers el-Kebir in Algeria. Hitler at once toyed with the notion of winning the Vichy French to an active alliance, thrusting Mussolini farther into the background.
Britain’s refusal to give up frustrated Hitler, especially since his ultimate goal—Lebensraum—lay in the east. The chief of the army general staff quoted Hitler on May 21 as saying that “we are seeking contact with Britain on the basis of partitioning the world.” But when the carrot failed, Hitler tried the stick, authorizing plans on July 2 for Operation Sea Lion, the cross-Channel invasion. Such an operation required complete air superiority, and Göring promised that the Luftwaffe could smash British air defenses in four days. The Battle of Britain that followed in August 1940 was a massive air duel between Germany’s 1,200 bombers and a thousand fighter escorts and the RAF’s 900 interceptors. But the British Hurricanes and Spitfires were technically superior to all the German fighters except the Me-109, which was restricted in its range to the zone south of London. The British radar screen and ground control network permitted British fighters to concentrate on each German attack. On September 7 Göring made the fatal error of shifting the attack from airfields to London itself (in retaliation for a September 4 raid on Berlin). For 10 days the blitz continued night and day over London, the climax coming on the 15th when nearly 60 German planes were shot down. Two days later Hitler granted that air superiority was not to be had and postponed Operation Sea Lion.
For a full year—June 1940 to June 1941—the British Empire fought on alone (though with growing U.S. aid) against Germany, Italy, and the threat of Japanese action in Asia. Frustrated on sea and in the air, Hitler pondered how his overwhelming land power might be used to persuade Britain to call it quits. A Mediterranean strategy based on the capture of Gibraltar, Malta, and the Suez Canal, did not seem likely to be decisive, nor did it satisfy the Nazis’ Blut und Boden (“blood and earth”) lust for Lebensraum. To be sure, the Germans raised the prospect of an occupation of Gibraltar numerous times with Franco, but the latter always found an excuse to remain neutral. In fact, Franco knew that the Spanish were exhausted after their civil war and that Spain’s Atlantic islands would be lost to the British if it joined the Axis. A Catholic authoritarian, he was also contemptuous of the neo-pagan Fascists. After their last meeting, Hitler confessed that he would rather have his teeth pulled than go through another bout with Franco. Hitler also negotiated with Pétain in July and October 1940 and May 1941, in hopes of enticing France into alliance. But Pétain, too, played a double game, pledging “genuine collaboration” with Germany but reassuring the British that he sought a “cautious balance” between the belligerents.
Hitler’s troublesome ally Italy, however, ensured that Germany would be involved in complications to the south. On July 7, 1940, Ciano visited Hitler seeking approval for an expansion of the war to Yugoslavia and Greece. The Führer instead encouraged the occupation of Crete and Cyprus, which would further the war against Britain. But three days later Italy’s inability to chase the British out of the Mediterranean became apparent when a British convoy off Calabria bumped into an Italian force that included two battleships and 16 cruisers. The Italian commander broke off the action after one hit on one of his battleships, whereupon the Fascist air force arrived to bomb indiscriminately friend and foe alike, doing little damage to either. Frustrated in the Balkans and at sea, Mussolini ordered his Libyan army to cross the Western desert and conquer Egypt. This adventure soon turned to disaster.