Think about all the other service workers we have in this community. We have people who collect waste and rubbish and keep our community sanitary. We have road workers who put up and repair traffic signs and fix holes in the streets to protect not just us, but our cars!
To begin to repair the damage to its relations with the United States, Europe, and other nations, and to begin restoring its place in the world, Russia must keep its word and act to end this crisis.
So it makes sense to keep your units engaged in combat as long as possible, pulling a unit back for repair/healing only when its overall health dips dangerously into the red zone.