1. A significant number of Palestinian civilians and militants and a (smaller) number of IDF soldiers will die. 2. The world will see hundreds of pictures on TV of crying Palestinian children and women, "garnished" by Israeli tanks in the background. 3. The number of Quassam attacks will sharply decrease for a few weeks, but at the latest in 3 months they will be back at the same level. Cost and benefit....????
Hamas says Egyptian mediation has restored calm along Israel, Gaza border (Haaretz)
from the article: A Vietnam called Gaza