Over a century later, it's difficult to imagine it was once a struggle to develop the tank. But the impact the very first tank had during World War I would have in shaping the future of combat can ...

The Mark I British Army heavy tank that entered service in 1916 was agonizingly slow to move, crawling along at a maximum speed of 3.7 mph (6 km/h), so it could easily be outrun and outmaneuvered ...

In WW1 tank occupants would need to get out to have a brew, which was a very bad idea. ‌ Submarines. WW1 was the first time that submarines were effectively used.

A CENTURY ago this year, the awful stalemate of the First World War was broken by the arrival of a terrifying new invention. A CENTURY ago this year, ...

From their first deployment at the Somme on 15 September 1916 they had mixed success. ... leading to the impression that WW1 tanks were slow, hard to manoeuvre, and hopelessly unreliable.

Revealed: How the first mass tank attack in WW1 was blown off course because rebellious Irish PoWs gave vital information about British attack to the Germans.

As the Cartier Tank passes its first centenary, we take a look back at the dynamic – and surprising ... A British Mark V-Star tank from WW1. The early years. What to Read Next.

The Mark I was the first official tank used in battle. It was a 28-ton model with a crew of eight and pair of six pound guns, backed by Hotchkiss 7.62mm machine guns.

There were lighter and quicker tanks operating in WWI, like the British-designed Medium Mark A Whippet (pictured), a 14-ton medium tank that used two four-cylinder 45-horsepower engines to achieve ...

In WW1 tank occupants would need to get out to have a brew, which was a very bad idea. ‌ Submarines. WW1 was the first time that submarines were effectively used.