[2] The former (Old) Yap Airport was originally built by the Japanese in WWII as Colonia Airfield, being completed in May 1944.

On April 1, 1944, US Navy aircraft from Task Force 58 sighted Colonia and bombed it.

A few days after an air raid on the Marinas from US Navy aircraft on the 11th of June, they attacked Colonia.

As part of the Battle of the Philippine Sea, aircraft from Colonia conducted strikes against the US Carriers.

[4] On the 17th, an airstrike of 31 Zeros, 17 Judys and 2 P1Y Frances aircraft were sent to attack ships at the Charan Kanoa area.