Six soldiers are taking part in a marathon 250-mile open water swim in order to raise funds for injured servicemen.
If you're going to race horses against motorbikes, you might want to practice - especially if it involves jumping through fire.
Members of the Armed Forces have been practising their routines for this year's military show.
The swimming challenge was the brainchild of Trooper Clifford O'Farrell, whose legs were badly injured in an explosion in Afghanistan.
Six soldiers are taking part in a marathon 250-mile open water swim in order to raise funds for injured servicemen. They're taking it in turns to swim, round the clock, in a six-day relay at Shepperton Lake in Surrey.
One swimmer, Trooper Clifford O'Farrell, was himself severely injured in Afghanistan and is swimming as part of his rehabilitation.
To mark the Diamond Jubilee celebrations of 2012, this year’s British Military Tournament will cover the "life and times" of Queen Elizabeth II, starting with the events of 1926 (the year the Queen was born) and finishing with the current-day military engagement in Afghanistan.
The event is described as the largest display of military theatre anywhere in the world and will include:
- More than 600 participants (including active servicemen) and 150 horses.
- The bands of the Royal Marines, the Household Cavalry, the Royal Artillery and the Royal Air Force.
- The horses of the Household Cavalry competing with the motorcycles of the Royal Signals’ White Helmets over an obstacle course which includes jumps and flaming hoops.
- A battle re-enactment featuring the Royal Logistic Corps in a dramatic bomb disposal in Afghanistan.
- The largest massed bagpipe band seen at Earls Court since the Second World War.
London Tonight has been at the launch for this year's British Military Tournament.
Members of the armed forces rehearsed some of the routines that will be on show when the event takes place at Earls Court in December.
An additional 1,200 troops that were put on standby for the Olympics last week will be deployed, Culture Secretary Jeremy Hunt said today.
A report in The Guardian today has raised fresh doubts on Olympic security being run by G4S, with claims recruits are being insufficiently prepared to detect bombs and other weapons.
Read more on the ITV national news website.