An ensign is a maritime flag that is used for the national identification of a ship. It is the largest flag and is generally flown at the stern of the ship while in port. Depending on the ship's origi
National civil ensign of New Zealand flown from the stern of Hikitia
A jack is a flag flown from a short jackstaff at the bow of a vessel, while the ensign is worn on the stern. Jacks on bowsprits or foremasts appeared in the 17th century. A country may have different
Ensign (flag)
…largest flag and is generally flown at the stern (rear) of the ship while in port. Depending on the ship's origin, it may sometimes be identical with a jack on the bow of the ship when in a port. Jacks are more common on warships than on merchant ships. The Middle English ensign is derived from the Latin…
Royal Netherlands Navy jack on HNLMS Walrus (1985), 2008
The US naval jack (2002–2019) being hoisted on USS Kitty Hawk's jackstaff in December 2001
Naval jack of the Irish Naval Service
Russian Navy submarine Sankt Peterburg displaying the Russian naval jack at the bow and the naval ensign at the stern