The Peace War

First in a quintessential hard-science fiction adventure, Hugo Award-winning author Vernor Vinge's The Peace War follows a scientist determined to put an end to the militarization of his greatest invention--and of the government behind it.

The Peace Authority conquered the world with a weapon that never should have been a weapon--the "bobble," a spherical force-field impenetrable by any force known to mankind. Encasing governmental installations and military bases in bobbles, the Authority becomes virtually omnipotent.

But they've never caught Paul Hoehler, the maverick who invented the technology, and who has been working quietly for decades to develop a way to defeat the Authority. With the help of an underground network of determined, independent scientists and a teenager who may be the apprentice genius he's needed for so long, he will shake the world.

Synopsis from Open Library.