Belleau Wood, Battle of, June 6-July 1, 1918, the second important engagement by United States troops in World War I. When the Germans were beaten back at Château-Thierry in France, the U.S. Second Division was ordered to attack Belleau Wood and the village of Vaux. After suffering heavy casualties, a brigade of Marines finally cleared the strongly defended wood on June 26. Vaux was captured on July 1. France later changed the name of the woods to Bois de la Brigade de Marine ("Wood of the Marine Brigade"). The site was made a permanent memorial in 1923 and is owned by the United States government.
Gallipoli Campaign, an Allied attempt in 1915, during World War I, to seize the Gallipoli Peninsula in Turkey and thus gain control of the Dardanelles strait, opening a supply route from the west to Russia through the Black Sea.
World War I was the great armed conflict of 191418. Until World War II, it was often called the Great War because it was the most destructive and widespread war the world had ever seen.