Al Jazeera has tracked down the origin of the white phosphorus used by Israel in the war on Gaza.
It comes from an army arsenal in a small US town called Pine Bluff, Arkansas, home to 50,000 people.
Mike Kirsch travelled to Pine Bluff to discover what its residents and leaders thought of their town’s role in the war on Gaza.
There is growing pressure on Hamas to reconcile with the rival Fatah movement of Mahmoud Abbas, the Palestinian president.
Many are urging unity in light of Israel’s assault on the Gaza Strip – but how to achieve that is eluding both parties.
Hamas is excluded from any diplomatic discussions, as it is viewed by Israel and many western governments as a “terrorist” organisation.
Al Jazeera’s Mike Kirsch reports.