Books Like The Forever War by Joe Haldeman

Space horses are star-faring creatures with telekinetic abilities that are far more powerful than any non-biological technology humanity has to offer. They’re also tamed and controlled by the Tampy aliens—and they don’t want to share. After extensive diplomatic negotiations, a tenuous peace is struck, and the first jointly helmed space horse will take flight. But with poachers determined to capture these giant, living spaceships, can the two species learn to work together? Or will this flight lead to all-out war?

Malcolm Lockridge is many things. A college student, an ex-marine, and a martial artist. He’s also a murderer. He’s currently awaiting his trial when a woman named Storm visits him with an unbelievable offer. He can gain his freedom if he helps her retrieve a lost treasure. But it’s not quite as simple as it appears. Storm is from the future, and Malcolm has been recruited to fight a war unlike any he’s ever fought before. Because the battlefield isn’t a place. It’s time itself.

Ever since Cete won both honor and exile from his commander, he has been searching for a place to call home. And at long last, he seems to have found it in Reach Antach. But that peace may be doomed. Predators lurk both within and outside the settlement, conspiring to destroy it to their own ends. Cete should move on. Instead, the warrior stays, betting everything he is on one final chance to change the tides of war.

Once mankind began travelling through the stars, they found themselves in an on-going war with an alien species. Now that they know where we are, they won’t stop until we’re eradicated. The only thing standing in the way are the members of an elite military team remotely operating avatars in the most dangerous areas of the war. Captain Conrad Harris has become known as a man addicted to death. He’s lost countless simulant bodies running suicide missions for humanity. When a secret research station goes dark, there’s no one better suited for a rescue mission than Harris. But no amount of training can prepare him for what he finds. And it’s possible this is one mission he won’t come back from.

On his wife’s 75^th birthday, John Perry did two things. He visited her grave and joined the war. Now that humanity has made it interstellar space, Earth is the last priority of mankind. All its resources go to defending the intergalactic colonies from myriad alien species. That means when you retire, you can join the Colonial Defense Force. If you survive your two year assignment on the front, you’ll be given a homestead on any planet except Earth. John Perry thinks he knows what to expect. The truth is far stranger.

Elizabeth Yeager was once a space marine. Now, she’s hit rock bottom. But when she finds refuge aboard a ship whose captain asks few questions might not be the boon she once believed. Surrounded by her sworn enemies and tasked with hunting down the remnants of the unit she loyally served her entire life, Yeager has to destroy her old comrades or risk raising the suspicion of her fellow crewmates. And when she takes sides in an ongoing struggle between her shipmates and ambitious officers, it’s going to take all her training to make it out alive.

Soldiers who come back from fighting the war against Mars come back different. People call them the Light Brigade because they are broken down into light to travel between battlefronts. Dietz is one of the brigade. But when they begin to experience combat drops that aren’t syncing with the rest of the platoon, they start to suspect the corporate brass is lying to the soldiers. Dietz struggles to figure out if they just see the war from a different perspective or if they’re suffering from combat madness. They’re ready to become a hero. But in war, sometimes it’s hard to avoid becoming the villain.