Planes were a very new invention, they were rare and fragile. But when World War One started they became weapons. Pilots could spy on enemy targets and the first bombs were dropped from the air.

A list of aircrafts and big guns ⁠used by ... Mark I P.B.R. The US Navy created special riverine task forces to disrupt weapons shipments in areas such as the Mekong delta.

Planes were a very new invention, they were rare and fragile. But when World War One started they became weapons. Pilots could spy on enemy targets and the first bombs were dropped from the air.