When I was stationed in Singapore on 48 Sqn our LOA used to cease as soon as we left the island despite the fact that wife and family were still back there.
As for US bonuses when we were doing Op Vigour (the Somalia 'relief' op ) with our fleet of 2 Herks the US ground 'troops' used to come and fly wiyh us. We thought they were very keen on flying until we discovered that every time they crossed the border into Somalia they collected a $50 bonus ! A rumour when I was in GW1 was that the Saudis wanted to pay us all a dollar bonus but HM Govt said no. Pity ! I see nothing has changed but MOD cicil servants have been paid £141 million as bonus' for providing 'outstanding support' to the Services. Still they do outnumber the forces two to one.