Before the end of April she left Liverpool for Rangoon, sailing with Convoy OB-133 which at sea became the fast convoy [Convoy OG 27F to Gibraltar. However, before "Yoma"s return from Rangoon Italy entered the war, making the Mediterranean unsafe for Allied merchant shipping. She therefore made a longer return voyage "via" the Cape of Good Hope, the South Atlantic and West Africa. At Freetown in Sierra Leone she joined the fast Convoy SL-39F, which caught up with and joined Convoy SL 39 at sea. SL-39 reached Liverpool at the end of July.