One of the bloodiest battles fought in human history, WWI’s Battle of the Somme saw 141 days of fighting and over 1 million men wounded or killed in action.

December 8, 1941, the day after the Japanese attack on Pearl Harbor, the US enters WWII. The war would drag on until September of 1945.

When Europeans forced the Chinese to import opium into their country, causing widespread addiction among the population, two Opium Wars would follow.

In February of 1945, the Big Three Allied leaders decided the post-WWII fate of Germany and Nazi-occupied Europe at the Yalta Conference.

The 85-year proud tradition of the Buffalo Soldiers, which were all-black cavalry and infantry regiments who fought from 1866 through the Korean War.

Out of the 11 deployed helicopters in Vietnam, the Huey or Bell UH-1D, became most essential. The Huey was ready to insert or extract troops from hot zones or rush the wounded to field hospitals.

In 1944, the Allied Air Forces sacrificed bombers as bait to engage the Luftwaffe with the P-51 Mustang in Operation Argument, becoming a big week in the allies campaign for air superiority.