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Date: August 23, 1942 – February 2, 1943 Significance: Major turning point on the Eastern Front, German forces were decisively defeated.

Date: June 4–7, 1942 Significance: Pivotal naval battle in the Pacific Theater, U.S. victory halted Japanese expansion.

Date: June 6 – August 1944 Significance: Marked the start of the liberation of Western Europe from Nazi control.

Date: July 10 – October 31, 1940 Significance: First major campaign fought entirely by air forces; the UK's victory prevented a German invasion.

Date: October 23 – November 11, 1942 Significance: Turned the tide in the North African Campaign against the Axis forces.

Date: June 22 – December 5, 1941 Significance: Largest military invasion in history, initiated the Eastern Front, ultimately failed for Nazi Germany.

Date: July 5 – August 23, 1943 Significance: Largest tank battle in history, resulted in a decisive Soviet victory.

Date: December 16, 1944 – January 25, 1945 Significance: Last major German offensive on the Western Front, ultimately unsuccessful.

Date: October 23–26, 1944 Significance: Largest naval battle of World War II, resulted in the destruction of much of the Japanese fleet.

Date: September 8, 1941 – January 27, 1944 Significance: One of the longest and most destructive sieges in history, a significant Soviet triumph.

Date: April 1 – June 22, 1945 Significance: Last and biggest of the Pacific island battles of World War II, part of the 'island hopping' strategy.

Date: December 7, 1941 Significance: Surprise attack by the Imperial Japanese Navy, led to the United States' entry into World War II.

Date: August 7, 1942 – February 9, 1943 Significance: First major offensive by Allied forces against the Empire of Japan.

Date: September 17–25, 1944 Significance: Ambitious but failed Allied operation to create a pathway into Germany and end the war.

Date: February 19 – March 26, 1945 Significance: U.S. Marines captured the island of Iwo Jima from the Japanese Imperial Army.

Date: September 1939 – May 1945 Significance: Longest continuous military campaign in WWII, crucial for the control of supply lines.

Date: May 4–8, 1942 Significance: First air-sea battle in history, stopped the Japanese sea-borne invasion of Port Moresby.

Date: January 17 – May 18, 1944 Significance: Series of four assaults by the Allies against the Winter Line in Italy held by Axis forces.

Date: April 16 – May 2, 1945 Significance: Final major offensive of the European theatre of World War II and the fall of Nazi Germany.

Date: January 22 – June 5, 1944 Significance: Allied amphibious landing in Italy intended to bypass German defensive lines.

Date: July 1–27, 1942 Significance: Prevented Axis from advancing into Egypt, maintaining control of the Suez Canal.

Date: June 19–20, 1944 Significance: Decisive naval battle, also known as the 'Great Marianas Turkey Shoot', further crippled Japanese naval air power.

Date: September 15 – November 27, 1944 Significance: Part of the United States' 'island-hopping' campaign, but with higher than expected casualties.

Date: May 26 – June 21, 1942 Significance: Marked the culmination of the North African campaign between the British and German-Italian troops.

Date: June 15 – July 9, 1944 Significance: Enabled U.S. air bombers to reach the Japanese home islands, contributing to Japan's defeat.

Date: May 20 – June 1, 1941 Significance: First mainly airborne invasion in military history, resulted in German victory but with heavy losses.

Date: February 27 – March 1, 1942 Significance: Crucial sea battle for the control of the Java Sea, resulted in a significant Japanese victory and Allied retreat.

Date: April 10 – November 27, 1941 Significance: One of the longest sieges in British military history, Tobruk was defended by the Allies against the Axis until its relief.

Date: November 8, 1942 – February 11, 1943 Significance: Allied invasion of French North Africa during the North African Campaign of WWII.