The Last Full Measure by Trent Reedy

Idaho, Idaho, land where freedom lovers go

Danny Wright started the Second American Civil War—and now he’s out of it, at last. The Feds have left his beloved home state of Idaho, and Danny and his friends JoBell, Becca, Cal, and Sweeney can live free of US dominance. But that new peace comes with considerable costs, from Danny’s disturbing flashbacks of the fighting, to the ongoing food and power shortages, to the Brotherhood of the White Eagle, whose promises of “security” look more like brutality.

From fertile plains to mountains tall, brothers, sisters one and all

Then Danny makes a shocking discovery about the Brotherhood’s final aims, and he joins a group of townspeople on a dangerous journey across a ravaged Idaho. As America collapses into war and chaos, they find a hidden place to build a society of their own. But is it right to stay safe when the world is cracking apart? Danny must work out his answers to the ultimate questions: what is worth living for, and fighting for, and dying for.

We will defend our liberty, Idaho, our lives for thee