ALRI 4th Division (Indonesian: Angkatan Laut Republik Indonesia Divisi IV) was a formation of Indonesian Navy during Indonesian National Revolution.
It was responsible for military operations in Kalimantan during the war.
Founded on 4 April 1946, it was divided into three sectors each with their own assigned region in Kalimantan.
The division was famous for its involvement in Kalimantan Physical Revolution.
[1][2] The division was divided into three sectors each with its own assigned region within Kalimantan.