Britain’s supplies to Finland in weapons and war material included one hundred and forty-four aircraft, of which twenty-four were bombers; some Lysanders which could land on a flat area about forty yards long, as well as aircraft such as the Gloucester Gladiator to which skis could easily be attached. There was a large quantity of hand-grenades, anti-tank rifles and machine-guns, as well as a considerable number of howitzers and field guns. Altogether ten ships, most of them Finnish, passed through my hands in Bergen; there may have been additional ships when I was recalled to England for a month. The very large number of rifles which we supplied were all of .303 calibre, equivalent to 7-7 mm. The German calibre of rifle which the Finns had adopted was 7-6 mm. The Finns filed down much of our ammunition to fit their own rifles; many of them were specialists in squirrel shooting and during the war they shot to kill as usual. They were also expert In forest warfare and in due course were to train the Germans, but without the success expected since the Germans were never attuned to such an individual role.
British bombers arrive in Finland
Earlier in the war: The British supply anti-tank bombs for the Winter War
Later in the war: Sumner Welles meets Ribbentrop