Palestinian Islamic Jihad fighters are seen in the streets of Gaza city on June 19, 2008, after returning from their positions on the border between Gaza and Israel. A fragile truce between Israel and the Palestinian Islamist movement Hamas came into force today in the Gaza Strip amid scepticism over how long the Egyptian-brokered deal would hold. Despite reservations the radical Islamic Jihad group, which frequently fires rockets at Israel from Gaza, vowed to respect the ceasefire deal.