Forever Peace by Joe Haldeman

An interesting tale tangentially related to Forever War–but it stands alone as much as it claims.

It’s a not too future with a fight between an imperialist America running a drug-war squared type intervention throughout the third world, remotely piloting mechs from the safety of fortified bases. Julian’s life bounces between his 10 day duty rotations and a scraping by life as a junior professor at home.

A couple of overlapping developments break the characters out of their comfortable lives and into the depths of scientific controversy and into a struggle with an apocalyptic cult. The final development comes from a crazy skew and seems to work too well… but it works.