The global conflict had profound effects on the American home front. World War II ended the Great Depression, restored economic prosperity, and increased labor union membership. At the same time, it smoothed the way for a closer relationship between government and private defense contractors, later referred to as the military-industrial complex. The war extended U.S. influence in the world and offered new economic opportunities at home. Despite fierce and bloody military battles throughout the world, Americans kept up morale by rallying around family and community.