The Japanese amphibious forces gathered to strike at Java, and on 27 February 1942, the main Allied naval force, under Doorman, sailed northeast from Surabaya to intercept a convoy of the Eastern Invasion Force approaching from the Makassar Strait. The Eastern Strike Force, as it was known,BBC. Fact File: Battle of Java Sea consisted of two heavy cruisers ( and ), three light cruisers (Doorman's flagship , , ), and nine destroyers (, , , , , , , , and ).
