What is considered the birthplace of close air support?

The birthplace of close air support is often considered to be during the operations in Nicaragua, specifically the Banana Wars. This period, which took place in the early 20th century, involved U.S. military interventions in Central America and the Caribbean, where aircraft were utilized to provide direct support for ground troops. The tactics developed during these engagements laid the groundwork for the close air support doctrine that would be refined in later conflicts.

The use of airpower in close proximity to frontline troops marked a significant evolution in military strategy, emphasizing coordination between ground forces and aerial support. This development was crucial in demonstrating how air forces could effectively assist infantry and marines in combat, influencing future military operations and the integration of airpower into ground operations.

The other options represent significant battles or locations in Marine Corps history but do not specifically denote the origin of the close air support concept, which emerged primarily during the conditions and tactics seen in the engagements of the Banana Wars.