Tank
From Wikipedia, a free encyclopedia written in simple English for easy reading.
A tank is a fighting machine that has armour to protect it from enemies. Tanks drive on tracks instead of wheels, to let it cross rough ground. Most tanks have a powerful gun, and sometimes many machine guns as well.
The first tanks were used by the British during World War I as a way of attacking enemy trenches. Tanks became a main weapon during World War II, where battles between great numbers of tanks were fought, especially between the Germans and the Soviet Union.
The tank is a major part of all large armies today.
A tank can also be a large container for water or other liquids.