In October 1914, the British authorities made St. Paul's Bay an examination anchorage, and decided to build a battery to identify shipping on the way to the Grand Harbour, and fire warning shots to ships who were not obeying the regulations.

In May 1915, two submarines were sighted off Malta outside the range of coastal artillery, hastening the need to build a battery in the north of the island.

The site was naturally protected so no permanent fortifications were built, and the battery only consisted of two gun emplacements.

[2] The two guns were designated Wardija Battery on 31 December 1915, and fell under the command of the Western Section Royal Garrison Artillery.

[4] In World War II, a gun-laying radar set was established on the site of the battery.