 Escorting a convoy, the South China Naval Force (Fifth Fleet) commanded by Vice Admiral Kondo Nobutake entered and anchored in Tsinghai Bay on the northern shore of Hainan Island at midnight on 9 February 1939 and carried out a successful landing.In addition, Navy land combat units effected a landing at Haikou at 1200 on 10 February.Thereafter, the Army and Navy forces acted in concert to mop up the northern zone.