Continuation.
At the beginning of the Industrial Revolution, armies fought on foot or on horse, with swords, lances or muzzle-loading muskets. The musket was a long gun, firing round balls of lead. It had a killing distance of about 150 metres and a very slow rate of fire. Because of this, foot soldiers fought in three rows, or ranks.
Then came the tanks made in Britain , by Henry Bessemer.He proved to produce such accuracy with a bronze cannon. Bessemer tried using steel but found it too costly. This caused him to develop a process for making cheap steel, the Bessemer process. This came the tanks
More details about the tanks.
Disadvantages They were very slow and vulnerable to grenades and,mines They could only cross certain kinds of terrain It could breake down They were very heavy so they could sink into the mud Being big and all they were easy targets They were very expensive The crew operating the tank died of dehydration.