By the end of August, she had also moved French personnel to Casablanca, carried civilian refugees from the Mediterranean region to Glasgow, and landed some 700 troops at Iceland.

During one of these runs, Ulsterman, carried the three survivors of HMS Hood (the British battlecruiser sunk by the German battleship Bismarck), back to the UK.

On 29 August 1941, off the west coast of Scotland, Ulsterman was holed in a collision with the destroyer HMS St. Mary's, requiring repairs on the Mersey until late September.

Ulsterman took part in Operation Torch (the Allied invasion of North Africa), landing United States Army Rangers of the 1st Battalion on the Algerian coast on 8 November 1942.

Serving with Mediterranean Link Lines of Famagusta (renamed Sounion), she sank at the pier in Beirut on 3 March 1973 after a sabotage operation, and was subsequently scrapped.