World War I and World War II were significant events in Black history, as African Americans played important roles in both conflicts despite facing discrimination and segregation in the United States military at the time.

During World War I, approximately 350,000 African Americans served in the U.S. military. They were mostly relegated to segregated units and often faced racism and unequal treatment. However, their service helped to challenge stereotypes and paved the way for greater opportunities for African Americans in the military.

In World War II, over one million African Americans served in various roles, including as soldiers, pilots, nurses, and support staff. The Tuskegee Airmen, an all-Black squadron of fighter pilots, distinguished themselves in combat missions in Europe. The "Double V" campaign, which stood for victory abroad and victory at home, highlighted the fight for civil rights both on the battlefield and in American society.

Overall, the contributions of African American service members during both world wars helped to advance the cause of civil rights and paved the way for greater equality and opportunity for Black Americans in the decades that followed.