Originally Posted by Rochard

You can argue it worked in Vietnam, but mostly because the United States public failed to support the war both originally and in the long term. If the public had supported the war it would have had a completely different outcome.

They tried this tactic in Iraq and it failed. It worked a little better in Afghanistan but still eventually failed.

The reality is even with guerilla warfare the larger, stronger power will win. The larger country has the ability to stay in a foreign country for ever and suffer the damage, while the guerilla force eventually loses support. The longer the guerilla force fights, the longer the invaders remain and the more damage is done. The quickest way for a guerilla force to get an invading army to leave is by... Not fighting.