He also promised the coalition would standby its commitment not to build a third runway at Heathrow, despite growing calls from Tory MPs for a change of heart.
We standby the Doha Development Agenda and reaffirm our commitment to pursue fresh, credible approaches to furthering trade negotiations at the World Trade Organisation (WTO), with an emphasis on specific areas where progress is most likely in the near term.
Spokeswoman Victoria Nuland said the US would "stand by the people of Lebanon" and reaffirmed her administration's "commitment to a stable, sovereign and independent Lebanon".