[matthewmacleod]

If only there was some kind of ongoing event that demonstrated exactly this…

[adastra22]

Or, you know, a whole world war that definitively proved the capability of dug-in defenders to hold ground.

[lesuorac]

I think the second world war showed how big the attacker advantage is.

Germany got's industrial base absolutely shattered while the non-defending US was able to use its industrial base to supply arms for 4 fronts (vs Germany, in Africa, for Russia, vs Japan).