Are you concerned about the fact that soldiers might circumvent the chain of command or the political decisions made by a country in time of war?
Has the IRB decided not to grant refugee status to foot soldiers because they have a specific role to play in time of war? Is it because they have a military contract and you don't want to set a precedent? It would mean that anyone at all could decide not to go to war because he or she didn't agree with the government's policies.