Japanese missions against Kalkas (Kakas) and Lake Tondano
December 26, 1941

December 26, 1941
(IJN) Six A6M2 Zeros from the 3rd Kokutai took off from Davao on an attack against Lake Tondano Seaplane and destroyed four flying boats moored on the lake for refueling and rearming for a mission against the Japanese invasion force off Jolo and KNILM S-43B Baby Clipper Registration PK-AFT.

Allied missions against Lake Tondano
January 5, 1945–May 16, 1945

January 5, 1945
(FEAF) B-24s hit the Tondano area.

February 7, 1945
(RAAF) Beaufighters from 31 Squadron damage a bridge at Tondano.

May 16, 1945
(FEAF) B-24s bomb Tondano.