The Mammoth Book of SF Wars

War is becoming increasingly 'SF-ized' with remotely controlled attack drones and robot warriors already in development and being tested. Over the past 100 years the technology of war has advanced enormously in destructive power, yet also in sophistication so that we no longer seem to live under the constant threat of all-out global thermonuclear cataclysm. So what will future wars be like? And what will start them: religion, politics, resources, refugees, or advanced weaponry itself?

Watso...