There were tank battles (especially in Russia) where hundreds of tanks on both side were effectively destroyed. Now add in trucks, towed and mobile guns, etc.
I was curious. Were they abandoned and scavenged for money after the war? Did they stay there and rust until years as the war? Did militaries take them for spare parts?
Turns out that equipment was very quickly cleaned up when possible. Usually within days/weeks.
Came across this incredibly detailed website with some amazing pictures and in depth information: https://wwiiafterwwii.wordpress.com/2017/02/20/cleaning-up-a...