The Great Tank War

The Great tank war was a war that happened from 2007 to 2052, making it the longest war of the 21st century. The new technologies were introuduced in 2039, marking the beginning of new space battles.

Cause of war
The war was caused over hate between Girls Und Panzer. It is also caused because of factories and arms race. When Tankormulte had enough, they decided to declared war on them.