Well, as you said the troops are doing their job. The better they do it the safer they are. At the same time it's not the troops who decide that some war is necessary, it is someone at the back, while the troops are supposed to follow the orders. It seems quite natural to be against the idea of putting lots of people at risk for a goal you don't find reasonable and to wish them success and a safe and sound return.
When there was a hostage situation here in a theatre in Moscow, the reporters announced the beginning of the police assault and have shown squads entering the building. Live. Since then they've got a bunch of restrictions stuffed up their backside.