Only if Antifa and blm act up in front of the military.

You cannot just invoke the Insurrection Act just because you suspect a city to be a stronghold for a terrorist organization.

Also, Dobbs said nothing about the military going to be prepositioned in these cities. And not every military member is behind Trump and many generals are not either. The timeframe is too short to vet that number of officers for the Insurrection act.