On 29 August 1939 the Admiralty requisitioned
Cheshire for conversion into an AMC. Her primary armament was six guns, and her secondary armament was two guns. She was
commissioned on 30 October, with the
pennant number F18. Her first commander was
Captain Montague Bernard. On 28 May 1940, she protected the French
aviso , which was rescuing survivors from the torpedoed
cargo liner . In June 1941, she took part in the escort of
Convoy HX 131 from
Halifax, Nova Scotia to Britain, and Convoy OB 335 from Liverpool out into the North Atlantic. In July 1941 she took part in the escort of Convoy BHX 137 from Bermuda to join Convoy HX 137 in mid-Atlantic to continue to Britain. In August 1942
Cheshire took part in the escort of Convoy SL 118 from Freetown to Britain. She returned to active service in 1941, commanded by Captain James Begg. At 18:52 hours on 18 August attacked the convoy at position , firing four single torpedoes. Two hit and sank
Netherland Line's
Balingkar, one damaged the
British India Steam Navigation Company's , and one damaged
Cheshire. ==Troopship==