The rallying call by Mohammed Morsi showed the huge divide between Iran's stalwart support of Assad and the growing network of regional powers pushing for his downfall.
Without a peace to monitor, U.N. peacekeepers will leave Syria by August 24. Diplomats will meet at the United Nations in New York on Friday to discuss next steps.
Today's suicide bombings in Syria's Idlib province come just three days after a suicide bombing in Damascus claimed by a salafi jihadist organization.
Reports out of the Syrian city of Homs have government forces firing mortars into an opposition neighborhood. Meanwhile, Syria has challenged the UN over its truce monitoring mission.
Russia appears to be running out of patience with Assad's heavy hand, and is preparing to push the Syrian leader for political and humanitarian concessions.
Turkey is likely to stir international leaders to stronger action after two Turkish officials were injured by cross-border gunfire. Envoy Kofi Annan said it was too early to say the UN cease-fire had failed.
Gunfire in Syria hits a refugee camp over the Turkish border on Monday, wounding five people with unconfirmed reports of possibly two deaths.
The Arab League wants to raise Syria's violent crisis at the United Nations – but it faces Russian reluctance.
According to state-run media in Syria, two car bombs went off in Damascus today. The government is blaming 'armed terrorists.'
Syria agreed to the monitors today in Cairo, just two days before the Arab League was set to push for action against Syria at the United Nations.