Groves, Leslie Richard (1896-1970), a United States army officer. Groves was in charge of the Manhattan Engineer District, the organization that developed the first atomic bomb, 1942-47.
WHAT'S INSIDE: WORLD WARS
- World War I
- World War II
- Other Conflicts
Cold War, the struggle for power and influence in the years after World War II between the Communist nations led by the Soviet Union (the East) and the Western allies headed by the United States (the West).
The Axis conquering the Philippines had repercussions throughout all of World War II's major theaters. Following the loss of the Philippines, the United States struck back with a major victory at the Battle of Midway. Find a timeline and photos in this article.