Video: Troops and vehicles head to Norway for Exercise Trident Juncture.
At the time, Major Cath Carter said: "All of these vehicles have to be incredibly clean before they’re allowed to travel on.
"These vehicles are probably the cleanest they’ve ever been!”
Exercise Trident Juncture saw the troops and vehicles go through a range of training including skid pan practice, casevac skills, live firing, resupplying infantry and cold weather training.
The process required a lot of meticulous checking, with seatbelts being "trapped in the door" one of the most common issues, according to Craftsman James Dewhurst.
It is also a huge unpacking operation - around 260 beds are scrubbed down and tents are hung out to dry.
The huge checking and cleaning process is vital.
"It's difficult because we've returned from exercise and we just want to go on leave and get home to our families but there is still stuff to be done, we've still got to maintain everything, make sure it's tucked away, ready for future missions," said Staff Sergeant Patrick Chambers.
In 2019, the vast majority of the fleet will be on high readiness alert as part of the multi-national force, Joint Expeditionary Force Light Brigade.