Exactly ! it's an obligation. Leaving Gaza was not a concession, it was an obligation. Liberating palestinian prisoners is not a concession, it's an obligation. Dismantling illegal outposts is not a concession, it's an obligation. Israel has so many obligations. The issue is that Israel does not want to look as the guilty State. Israel has lied so many times that it's impossible today to face reality even towards its own citizens.
Israeli PM to Palestinian President Abbas: We must fight terror together (Haaretz)
from the article: No realistic chance of permanent Middle East peace