HMS Legion was a Laforey-class

Laforey class destroyer (1913)

The Laforey class was a class of 22 torpedo boat destroyers of the Royal Navy, twenty of which were built under the Naval Programme of 1912 - 1913 and a further two under the War Emergency Programme of 1914. As such they were the last pre-war British destroyer design. All served during World War I...

 destroyer

Destroyer

In naval terminology, a destroyer is a fast and maneuverable yet long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against smaller, powerful, short-range attackers. Destroyers, originally called torpedo-boat destroyers in 1892, evolved from...

 of the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

. Launched prior to the outbreak of the First World War, she was attached to the Harwich Force

Harwich Force

The Harwich Force was a squadron of the Royal Navy, formed during the First World War, that went on to play a significant role in the war.-History:...

 and served in the North Sea

North Sea

In the southwest, beyond the Straits of Dover, the North Sea becomes the English Channel connecting to the Atlantic Ocean. In the east, it connects to the Baltic Sea via the Skagerrak and Kattegat, narrow straits that separate Denmark from Norway and Sweden respectively...

. Legion saw action in several engagements, including the Battle off Texel

Battle off Texel

The Battle off Texel, also known as the Action off Texel or the Action of 17 October 1914, was a naval battle off the coast of the Dutch island of Texel during the First World War where a British squadron consisting of one light cruiser and four destroyers on a routine patrol encountered the...

.

Specifications

Legion was constructed by William Denny and Brothers

William Denny and Brothers

William Denny and Brothers Limited, and often referred to simply as Denny, were a Scottish shipbuilding company.-History:The Company was founded by Peter Denny in 1840 and based in Dumbarton, on the River Clyde. Although the Denny yard was situated near the junction of the River Clyde and the River...

 and launched on 3 February 1914.

The destroyer was fitted with three QF 4 inches (101.6 mm) Mk IV guns

QF 4 inch naval gun Mk IV, XII, XXII

The QF 4-inch gun Mk IV was introduced in 1911 as a faster-loading light gun successor to the BL 4 inch Mk VIII gun, and was the main gun on most Royal Navy and British Empire destroyers in World War I.-Mk IV gun:...

, a single QF 2 pdr pom-pom Mk. II

QF 2 pounder naval gun

The 2-pounder gun, officially designated the QF 2-pounder and universally known as the pom-pom, was a 1.575 inch British autocannon, used famously as an anti-aircraft gun by the Royal Navy. The name came from the sound that the original models make when firing...

, and four torpedo tubes in two twin mounts. Legion was designed to operate in British coastal waters against enemy surface and submarine shipping.