Navy Day

The People's Liberation Army of China celebrates the founding of its naval arm on "Navy Day", 23 April.

It commemorates the day when Indian Naval Ships set Karachi ablaze and gave a successful completion of Operation Trident.

It commemorates the sinking of the Austro-Hungarian dreadnought SMS Szent István by the Italian torpedo boat MAS-15 on June 10, 1918.

[9] June 1 is National Maritime (Merchant Marine) Day, in honor of the Tabasco, the first ship crewed exclusively by Mexican-born sailors (1917) and the Potrero del Llano and Faja de Oro, Mexican oil tankers sunk on May 13 and 20, 1942, during World War II.

In Russia Navy Day is a national holiday that normally takes place on the last Sunday of July.

It commemorates the Battle of Preveza on 27 September 1538 near Preveza in northwestern Greece between an Ottoman fleet and that of a Christian alliance assembled by Pope Paul III in which the Ottoman fleet defeated the allies.

[14] In Ukraine, Navy Day is a professional holiday that is celebrated on the first Sunday of July.

[7][18] On 24 August 2014 Ukrainian President Petro Poroshenko declared that Ukraine should not celebrate the holidays of the "military-historical calendar of Russia" but "We will honor the defenders of our homeland, not someone else's".

[19] On 12 June 2015 a Presidential decree by Poroshenko moved Ukraine's Navy Day to the first Sunday of July.

[20] On 23 May 1918 Hetman of the Ukrainian State Pavlo Skoropadskyi ordered the creation of a brigade of naval infantry consisting of three regiments.

[21] The term is also used in Britain to mean an open day at a dockyard such as HMNB Portsmouth, when the public can visit military ships and see air displays, roughly along the lines of an American Fleet Week.

In 1949, Louis A. Johnson, (1891–1966, served 1949–1950), second Secretary of the newly merged and created Department of Defense, directed that the U.S. Navy's participation occur on newly established Armed Forces Day for the unified/coordinated uniformed services in May, although as a private civilian organization, the Navy League was not affected by this directive, and continued to organize separate Navy Day celebrations as before.