The issue will be: 1) Where are Israel's declared and accepted borders? ALL of them, and 2) Did she take any land beyond said land, by right of conquest? THAT is a war crime, which Israel ratified. She also SIGNED that all refugees are entitled to return to their homes. Who said what to whom a few millenia ago is not relevant. There could also be issues around Cast Lead (white phosphorus among them), collective punishment, and the razing of Palestinian villages around '48.
U.S. says working on initiative to de-escalate Syria fighting, with focus on Aleppo (Reuters)