Synchronicity - minutes after posting this, I come across another novel about Americans fighting to defend liberty, freedom, and decency:

Inspired by true events, local knowledge, and today's headlines, J. Thomas Rompel delivers a non-stop thrill ride about citizen warriors who must band together to restore truth, liberty, and peace.

An aging entrepreneur, a retired Delta Force Colonel...

Together, they try to make sense of the violence that shatters their peaceful city. One attack is just the beginning... Islamic jihadists have joined forces with a ruthless Mexican cartel to bring America to her knees.... corrupt government authorities turn a blind eye. Brutality quickly escalates and cries for help go unheard leaving Carter and Doug to face the ultimate question...
Would you break the law to save your family and your country?

Citizen Warrior - The 4th Branch - Citizen Warrior Series Book 1 by J Thomas Rompel via @amazon