Today in World War II History—September 20, 1943

Soldiers from the 2/6th Independent Company display Japanese flags they captured during the battle of Kaiapit, 22 September 1943 (Australian War Memorial 057510)
80 Years Ago—Sept. 20, 1943: Australian 2/6th Independent Company defeats larger Japanese force at Kaiapit, New Guinea, opening up the Ramu Valley and sites for airstrips.
At Auletta, Italy, US Fifth Army meets British Eighth Army advancing from the south.
US War Department puts all coastal observation posts down to alert status due to declining invasion threat.