The Battle of Kilkis–Lachanas took place between Greece and Bulgaria during the Second Balkan War. The two countries fought for the town of Kilkis in Central Macedonia from 19 to 21 June 1913 O.S. with Greece ultimately being victorious.

USS Mississippi (BB-23) was the lead ship of the Mississippi class originally built by the US Navy in 1904–1908. The class was built to a design smaller than other American battleships as the result of a limit on displacement imposed by Congress as part of an effort to constrain costs. The ships were armed with a main battery of four 12 in (305 mm), the standard for pre-dreadnought battleships of the time, but to secure that heavy primary armament, significant compromises in speed, secondary batteries, and armor protection were necessary to keep the ship within the prescribed displacement limit.