Watch live coverage
of MPs taking evidence on current UK operations in Afghanistan from senior military officers from 10.30am on 11 May 2011.
British troops have been in Afghanistan for a decade, following the 9/11 attacks on the World Trade Center in New York.
There are around 9,000 British armed forces personnel in the country, although the Prime Minister David Cameron has said that he hopes combat troops to be out by 2015.
He has announced that Afghan forces are to take charge of security during 2011.
Most British troops are based in the south of the country, in and around the Helmand region.
The British forces are part of the Nato-led International Security Assistance Force (NATO-ISAF) mission, which includes troops from 48 different countries, including the US, Germany and France.
Evidence will be taken from:
• General Sir David Richards, Chief of the Defence Staff
• General Sir Peter Wall, Chief of the General Staff
• General Sir Nicholas Houghton, Vice Chief of the Defence Staff