Troops Relocation mission allows relocating troops among your domains.
The mission is launched from the Kingdom Map screen after clicking city-destination, which has to be not your current domain.

Mission Speed.
The mission travels twice as fast as attack missions.

"Troops Relocation" mission can be withdrawn until troops didn’t come too close to the place of destination.
A possibility to withdraw mission becomes blocked one minute before arrival.

Squad award
The slower mission’s travelling speed is, the less the mission will cost.
As troops arrive to a new city they begin to consume salary from the city.

After troops have been relocated they will require one minute for rest.

Troops Relocation to ally or clan-mate’s domain is called Assistance.