Explosive motor boats which usually detonated after ramming their target were employed by the Italian and the Japanese navies in WWII.<unk> Explosive motor boats which usually detonated after ramming their target were employed by the Italian and the Japanese navies in WWII. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️
1941, Shinyo suicide boats sank a number of US amphibious craft in the Pacific Theatre of operations in 1945. <unk>