Authoritarian countries in which the people serve the state, see drug or vaccine trials a bit different than democratic countries. They are trying to make sure the thing doesn't hurt the state by killing too many people. In some places like China, 10% mortality is actually a feature. So they run their Phase III trials by edict on some captive group in close proximity so their is a viral challenge. The army is perfect!

But note that the Chinese vaccine company says 7 months for their trial. The US is the only place on Earth that is going to try it for 3.5 months, because Trump does not give a rat's ass if people die.