Show r k 4 i 44 77 N they keep trade channels open for britain P caf 31 R N FF V V Z ME busiest craft in the european war are the bri british tish mine sweepers whose duties it is to rid the seas of 0 those deadly weapons here vessels take up positions in an area suspected of having mines hidden below the surface the mine cables are cut causing them to rise to the surface sharpshooters then explode them inset A sailor prepares to throw marking buoys overboard to indicate to vessels that the area has been swept clean of mines and is safe for shipping |