Heavy tank
The Char 2C was one of the largest tanks ever produced. At the start of World War II, France and the Soviet Union were the only countries to have inventories of heavy tanks, such as the Char B1, T-35, and KV-1. The Matilda II was designed under the British infantry tank concept which is similar to the heavy tank having thick armor and weighing more than their other tanks. It’s usually separate because they have less firepower with their cruiser tanks (comparable to mediums) at the time having the same main armament but more machine guns. Later war examples were the German Tiger I and II, as well as the Soviet IS series. Note that "heavy" versus "medium" is more a question of tactical roles than weight; the Panther, for example, was a "medium" tank that outweighed most Allied "heavy" tanks.
Tanks in the Israeli Army
One of the greatest tank battles in history, the Battle of Golan Heights, took place during the Yom Kippur War. In the Golan Heights, the Syrians attacked two Israeli brigades and eleven artillery batteries with five divisions (the 7th, 9th and 5th, with the 1st and 3rd in reserve) and 188 batteries. They began their attack with an airstrike by about 100 aircraft and a 50-minute artillery barrage. The forward brigades of three divisions then penetrated the cease-fire lines and bypassed United Nations observer posts, followed by the main assault force, which was covered by mobile anti-aircraft batteries, bulldozers to penetrate anti-tank ditches, bridge-layers to overcome obstacles, and mine-clearance vehicles.
The engineering vehicles were priority targets for Israeli gunners and took heavy losses, but Syrian infantrymen, braving intense fire, advanced forward and used their entrenching tools to build up earthen causeways for the tanks, enabling them to overcome anti-tank ditches.