Obama warns Tehran to accept nuclear talks soon. Iran's crackdown on protesters may be hardening US policy.
Briefing: With newly installed or reinstalled leaders in Iran, Lebanon, Israel, and the US, the balance of power has shifted between a US-allied bloc and the 'axis of resistance.'
The current protests involve a broader coalition, in which everyone from mothers to sanctions-strapped businessmen are united in seeking accountability from the Iranian regime.
The nations meeting in earthquake-devastated L'Aquila are also likely to consider what actions to take on Iran, North Korea.
Its support base dropped to 19 percent after the war; many blame the Hamas-Fatah standoff for their plight. Egypt hosts the rivals for a final round of reconciliation talks July 25.