France believes each country's pace of action on Syria should be respected, according to source close to French President Hollande.
Hollande reaffirmed to Obama, in a phone call, his determination to sanction moves against Syria, the source told Reuters.
David Cameron has backed Barack Obama after the president announced he is seeking congressional support to launch military action in Syria.
David Cameron accepted the public did not want intervention in Syria. But he might have got a different result if his ministers voted.