Both the United States and Britain are hoping to reduce their military commitment in Iraq to focus on Afghanistan.

The US is considering cutting American troop numbers to below 120,000, compared with 170,000 last year. Up to three combat brigades could be withdrawn in September.

Britain is also looking to cut troop numbers by almost a half in Iraq, from 4,000 to about 2,500, although not until next year. This would give the Government the option of deploying more units to Helmand province, where the Taleban has intensified its operations, using suicide attacks, roadside bombs and mines.

More American and British troops are now dying in Afghanistan than in Iraq, and with both countries committed to supporting the Kabul Government, the availability of additional troops to fight the Taleban is becoming an increasingly pressing issue.

The Americans have about 32,000 troops in Afghanistan, spread out in eastern and southern provinces. The British have 7,800 in Helmand and in neighbouring Kandahar province. This figure is expected to rise to more than 8,000 by the end of the year.

American commanders have been calling for another 10,000 US troops for Afghanistan. The Pentagon has already sent an additional 3,200 Marines, who provide a mobile reserve force for southern Afghanistan, but it has been difficult for the US military planners to send more because of the commitment in Iraq. Britain is in the same position, struggling to maintain the required troop levels for two long-running campaigns.

Times Recommends

• Rio Tinto four held as China prepares case
• Diplomats must keep heads down and trousers up
• When in Rome should one make like Berlusconi?