International maritime signalflags are various flags used to communicate with ships. The principal system of flags and associated codes is the International
feature of the swallow species of birds. Nauticalsignalflag for "A" Naval ensign of Poland Naval ensign of Germany Flag of the Vietnamese Pure Land Buddhist
Defense flags Naval Jacks Nauticalflags Police Flags Civil air ensigns Civil and Merchant Navy Flags Pilot boat flags and ensigns Yacht flags and ensigns