A "clean sweep" for a naval vessel refers to having "swept the enemy from the seas," a completely successful mission. It is traditionally indicated by hanging a broom from a mast or lashing it to the periscope of a submarine.
A "clean sweep" for a naval vessel refers to having "swept the enemy from the seas," a completely successful mission. It is traditionally indicated by hanging a broom from a mast or lashing it to the periscope of a submarine. (en)
A "clean sweep" for a naval vessel refers to having "swept the enemy from the seas," a completely successful mission. It is traditionally indicated by hanging a broom from a mast or lashing it to the periscope of a submarine. (en)