How about bomb every important military, civilian, educational, administration and leadership building in Iran. Bomb power plants, water reservoirs, road networks, bridges, rail lines and communication centers. Then enforce land, air and sea blockade of every essential item including food, medicine and fuel for 10 years. NATO already surrounds Iran from almost every direction. Will it be enough ? NATO can surely achieve this much dont you think ? Will you consider that a defeat Key ? All this won't require any boots on the ground.