well not really, I mean there were 2 invasions in 20 years (one actually burned down athens, but they rebuild) if you watch history channel they have the Commanding desisions on it
November 6th, 2004
MadeInChina
3) Lin biao used 1.2 million troops + 500,000 supports units in the battle of peking
November 8th, 2004
USAFAUX2004
Now thats is a battle like the ones on the russian front in WW2