That's the beauty of authoritarian state - people who did the job had no choice, authority who ordered had no sympathy.
E.g. helicopter pilots summoned from Baltic states didn't even know where they were flying or what will be the task. And even if they knew, do you think they could argue not to participate?
In this sense slavery could be called "strength" of some country because it allows unprecedented workforce mobilization.
That's the beauty of authoritarian state - people who did the job had no choice, authority who ordered had no sympathy. E.g. helicopter pilots summoned from Baltic states didn't even know where they were flying or what will be the task. And even if they knew, do you think they could argue not to participate? In this sense slavery could be called "strength" of some country because it allows unprecedented workforce mobilization.