Battle of the Seelow Heights
The sector in which most of the fighting in the overall battle took place was the Seelow Heights, the last major defensive line outside Berlin. The Battle of the Seelow Heights was one of the last pitched battles of World War II. It was fought over four days, from 16 April until 19 April 1945. Close to one million Soviet soldiers and more than 20,000 tanks and artillery pieces were in action to break through the "Gates to Berlin" which was defended by about 100,000 German soldiers and 1,200 tanks and guns.