Battle of Sagami Bay
Part of World War II
USS De Haven (DD-727), the destroyer which led the attack, underway in 1944.
Date 22-23 July 1945 Location off Bōsō Peninsula Result American victory
Belligerents
United States	Japan
Commanders and leaders
T.H. Hederman	Unknown
Units involved
United States Navy Destroyer Squadron 61 [1]	Imperial Japanese Navy
Strength
9 destroyers	1 minesweeper 1 submarine chaser 2 freighters
Casualties and losses
None	1 freighter sunk 1 freighter damaged

The Battle of Sagami Bay was a World War II anti-shipping raid off the tip of Bōsō Peninsula on the night of 22 July 1945. It was the last surface action of the war. Destroyer Squadron 61 (DesRon 61) of the U.S Navy engaged with a Japanese convoy consisting of two freighters escorted by subchaser No. 42 and minesweeper No.1. The Americans sank a freighter, No.5 Hakutetsu Maru of 800 long tons (810 t), and damaged another freighter, Enbun Maru of 6,919 long tons (7,030 t). The Japanese escorts were not damaged.