Book Log 2020 #12: The Last Colony by John Scalzi

The third book in the Old Man's War series, we find former solider John Perry and his family settled down, at least until they're given an offer to lead a new colony, made up of residents from other previously colonized planets.

Only problem is that the Conclave, an alliance of races seeking to limit human expansion into the universe, discovered the location of the planned colony, forcing the Colonial Union to send the homesteaders to a new planet. Which they have to settle as damage to their ships prevents them from going home. And which they have to settle without the use of current technology, so the Conclave won't find them. 

And eventually, as you'd expect, the Concalve does find the colony, and it becomes embroiled in the politics between the Concclave and the CU, leading to an inspired - but possibly treasonous - solution.

As with most series, if you've liked previous books you'll like this one.