The coat of arms of Ukraine is a blue shield with a golden trident. It is colloquially known as the tryzub.
Ukrposhta stamp "The first anniversary of the independence of Ukraine. State Coat of Arms and State Flag of Ukraine". 1992
The Ukrainian trident overprint of May 1919 on a five-heller stamp of Austria-Hungary
The white gyrfalcon, possibly the inspiration for Ukraine's trident.
Image: Герб УССР 1919
A trident is a three-pronged spear. It is used for spear fishing and historically as a polearm.
Trident of Poseidon
Illustration of a trident user from the Wubei Zhi, late 16th to early 17th century
Fountain of Neptune in Diafáni, Karpathos island
Dutch fishermen using tridents in the 17th century.