This is solid military SciFi. The premise is that an attack fleet from the “Alliance” finds the century old survival pod of legendary commander John “Black Jack” Geary, with the man himself hibernating inside. Just after that, the fleet is stranded in “Syndic” space after being soundly defeated in an ambush. All the flag officers have been imprisoned and shot, so by virtue of time in rank, Captain Geary is now in command of the “Lost Fleet”. But in the century of his absence, two interesting developments have occured. First, he is seen as a legend; a larger than life hero viewed by the personnel now under his command as a savior. Secondly, the long war has led to high rates of attrition, loss of command know-how, and acceptance of atrocities. To add spice to the mix, many of the surviving captains are not happy about the new regime. And now the fleet has to fight its way home.
The prose is straightforward, with the point of view character always Geary himself. He is tired and sick from his long hibernation, baffled and angered by the ruthlessness and incompetence the fleet, and frustrated at the idiocy of many of his commanders. The novel (first in a series) is a study in leadership, and the necessity to perform both the right actions and use the right words in order to ensure loyalty. Beyond that, it is a fun and fast paced little book. It doesn’t hold immense depth, but if you like military SciFi, you’ll probably enjoy it.
Note that Jack Campbell is a pen name for John G. Hemry.