Frankly, I am shocked at the question. The end result of both withdrawals was the opposite of peace. Extremists in both cases capitalized after so-called moderates fail to seize the moment and set the right tone among their people (Gaza greenhouses were destroyed which could have been income producing institutions for the Palestinians). As for Lebanon.. The A team of terrorists Hezbolla are now well in place on foreign soil and within the government too. I would say that land for peace has not worked but inflamed matters even worse.
Palestinian foreign minister filed report to ICC over torching of Duma home (Haaretz)
from the article: Were the withdrawals from Lebanon and Gaza a failure?