Books with title Old Man's War

Just as summer vacation is about to arrive, Nate Huffman's plans are unexpectedly shelved for the most unlikely of reasons: the reappearance of his estranged father. Not only is the old man back, he's got this goofy idea about a road trip the two of them will take. Nate finds himself in a pickup with a man he can't stand. His father wants to reconnect, and he wants Nate to really understand him. Larry Huffman has chosen to make this happen by taking his son into his own past, which has the Vietnam War as its centrepiece. As the two struggle their way through the jungle of the Ashau Valley, the old man relives the horror of the battle that changed him forever, and Nate undergoes changes of his own - and they experience something that goes far beyond what either of them expected.

John Perry did two things on his 75th birthday. First, he visited his wife's grave. Then he joined the army. The good news is that humanity finally made it into interstellar space. The bad news is that planets fit to live on are scarce - and alien races willing to fight us for them are common. So, we fight, to defend Earth and to stake our own claim to planetary real estate. Far from Earth, the war has been going on for decades: brutal, bloody, unyielding. Earth itself is a backwater. The bulk of humanity's resources are in the hands of the Colonial Defense Force. Everybody knows that when you reach retirement age, you can join the CDF. They don't want young people; they want people who carry the knowledge and skills of decades of living. You'll be taken off Earth and never allowed to return. You'll serve two years at the front. And if you survive, you'll be given a generous homestead stake of your own, on one of our hard-won colony planets. John Perry is taking that deal. He has only the vaguest idea of what to expect. Because the actual fight, light-years from home, is far, far harder than he can imagine. And what he will become is far stranger.