Korean War M4A3E8 Sherman 'Tigerface'
Company-C, 70th Tank Battalion 1951

I'm assuming this tank represents the time when Lieutenant General Matthew B. Ridgway replaced General Douglas MacArthur in the in April 1951 and I have read that he, amongst other moral boosting actions, got soldiers cleaning their vehicles again!

This is inspired by a tank of C-Company of the 70th Tank Battalion which was one of the first three tank battalions to deploy in the Korean War, where it saw significant action.

From what I understand, as the United Nations forces engaged with the Chinese People's Army along the Han river in Korea in mid-February 1951, several US tank battalions decided to paint their tanks with giant tiger faces, the idea being that they hoped superstitious Chinese infantrymen would be scared by their fearsome faces!