Youth going to Prepare for War

If you’re going to set up a new government once the first government falls, why obliterate standing and operational government buildings when you can simply take them? We don’t know to what extent existing governmental systems (including the presidency and congress not to mention state and local governments) are already compromised. It’s not a stretch of the imagination to see a first wave attack including highly trained foreign special forces soldiers and foreign spies planted here for that purpose.