No, we do not know what the mission is.
Various administration hacks have posed differing opinions, and have clearly stated that the troops will be caring for infected individuals.
The boilerplate that the Pentagon issues has been known to be bovine excrement for the entire time that Obingo has been in office.
Why did you jump in the thread? (we know)
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Actually we know what the mission is.
We know the missions is to build 17 treatment centers with 100 beds each, a 25 bed hospital for the health workers, and to train 500 health worker assistants per week, and to handle logistics and supplies.