French jets from the aircraft carrier Charles de Gaulle struck Islamic State targets in Iraq on Monday while Britain offered France the use of an air base on Cyprus to hit the militants behind the Paris attacks.
French President Francois Hollande met British Prime Minister David Cameron in Paris on Monday as part of efforts to rally support for the fight against Islamic State and Hollande is also due to visit Washington and Moscow this week.
Cameron offered air-to-air refueling services and said he was convinced Britain should carry out airstrikes alongside France and would be recommending that Britain's Parliament vote through such measures.