(Bloomberg) — The Palestinian Authority officially joins the International Criminal Court on Wednesday, a step they say will allow them to pursue war crimes charges against Israel.

The Palestinian accession to the Hague-based court “provides a lot of tools and legal means to address the crimes and violations Israel has committed against the Palestinian people,” said Hassan al-Ouri, legal adviser to Palestinian President Mahmoud Abbas. “Israel, which thinks it’s above international law, must now change its approach.”

Joining the ICC is part of a broader diplomatic campaign to win statehood status and isolate Israel internationally that the Palestinian Authority revived after U.S.-backed peace talks collapsed a year ago. Israel says statehood can only be achieved through direct negotiations, and that unilateral steps will set back the Palestinians’ quest.

No specific charges will be immediately filed, pending the court’s review of possible claims, Palestinian officials have said.

Israeli officials have expressed doubt that the ICC will accept Palestinian claims against them, and say joining the court exposes the Palestinians themselves to possible prosecution on war crimes charges.

“If the Palestinians begin exploiting the ICC to begin a ‘legal jihad’ against the Israel Defense Forces, Israel will know how to respond,” said Dore Gold, a former adviser to Israeli Prime Minister Benjamin Netanyahu. “The culpability of Palestinian leaders, with respect to the harm they have caused to Israeli citizens, can be brought before a number of the world’s courts.”

Court Review

The Palestinian Authority began the process of joining the ICC by signing its Rome Statue in January, thus recognizing the court’s jurisdiction over the West Bank, east Jerusalem and Gaza Strip. The court’s chief prosecutor then agreed to open a preliminary investigation into Palestinian accusations of Israeli war crimes from a period beginning in June 2014.

That starting date will allow the court to review whether there are sufficient grounds for prosecution relating to Israel’s military operation in Gaza last summer, which left more than 2,100 Palestinians and 70 Israelis dead. Amnesty International has said both the Israeli military and the Hamas militant group that rules Gaza committed acts “amounting to war crimes” in that conflict, in particular with regard to civilian casualties.

“We have formed a technical committee that’s preparing two files” for the ICC, al-Ouri said. “One is for the crimes committed in the recent Gaza war, and the other is for Israeli settlement activity.”

ICC chief prosecutor Fatou Bensouda, a Gambian lawyer, said in January that the court will examine Palestinian claims against Israel “in full independence and impartiality.”

To contact the reporters on this story: Calev Ben-David in Jerusalem at cbendavid@bloomberg.net; Fadwa Hodali in Ramallah at fhodali@bloomberg.net

To contact the editors responsible for this story: Alaa Shahine at asalha@bloomberg.net Amy Teibel, Jack Fairweather