London's mayor says troops assigned to guard the Olympics are ''enjoying a very unusual and memorable operation.''
But some soldiers have complained of less-than-ideal accommodations, while others say they have not been able to get tickets to watch Olympic events.
Thousands of troops were deployed at short notice after private security firm G4S admitted it would not be able to provide the number of staff it had promised.
On Friday, London Mayor Boris Johnson visited Tobacco Dock, a warehouse complex where 2,000 soldiers, sailors and air force personnel are sleeping on camp beds and using portable toilets.
Cornet Harry Thomas of the Household Cavalry said since his men were on standby as backups, they had not been given tickets to sports.
He said ''the ticketing thing is a real shame.''
