RAMALLAH, West Bank (AP) – From Lebanese guerrillas to Saudi preachers, Islamic extremists have warned followers not to be taken in by President Barack Obama’s conciliatory words – a sign that some may be nervous about losing support if animosity toward the U.S. fades.

But even moderates warn Obama will have to quickly follow his call for a new relationship with the Islamic world with bold actions to prevent a disappointed backlash.

In his speech in Cairo Thursday, Obama listed confronting “violent extremism” as the top priority in addressing tensions between the U.S. and Muslims. He urged the Islamic world to reject radical ideologies and promised to work aggressively to end the Israeli-Palestinian conflict. He also said the U.S. does not accept the legitimacy of continued Israeli settlement in the West Bank and endorsed a Palestinian state