Old Man's War Books in Order

A four-part continuation of the Old Man's War universe that follows multiple narrators through a period of escalating political breakdown. As alliances strain and institutions crack, the characters fight to keep people alive, and to stop a bad situation from becoming the end.

A linked set of episodic missions in the Old Man's War universe, following the Colonial Union's Diplomatic Corps as it tries to keep human space from fracturing. Lieutenant Harry Wilson and his team handle crises where negotiation can be as lethal as war.

A parallel telling of The Last Colony through the eyes of Zoe, a teenager growing up inside the Colonial Union's strange new home. She faces danger, first contact, and hard moral choices, while trying to figure out what kind of person she wants to be.

John Perry and Jane Sagan are pulled from the battlefield and tasked with leading a new colony, a job with more politics than bullets. On an unfamiliar world, they must protect their people while navigating forces that would rather see the colony fail.

Special Forces soldiers called the Ghost Brigades are grown from human DNA and sent on missions regular troops cannot touch. A new recruit must hunt down a traitor whose secrets could doom humanity, while figuring out who he really is.

When 75-year-old John Perry enlists in the Colonial Defense Forces, he leaves Earth behind for a war he does not understand. Given a new body and a new life, he is thrown into brutal alien conflict and hard questions about identity and sacrifice.