The M6 series was the first of the heavy tanks used during the war.

The Germans also started to develop a new series of heavy tanks.

The tank was similar in design to British heavy tanks of the period.

Heavy tanks have very large guns and can usually take the most damage.

Heavy tanks and other equipment could be flown in later.

However, large numbers of them can be quite devastating for medium and heavy tanks.

The meaning of the terms light, medium, and heavy tanks changed between the wars.

The heavy tanks mean that a relatively low pressure is optimal.

These engines were used across all of the German medium and heavy tanks.

This tank signaled the end of heavy tanks throughout the world.