real soldiers love their robot brethren

Human warriors have long spoken of the bonds forged in combat and of becoming a "band of brothers."

The fact that some of those fellow soldiers are made of metal has not discouraged human feelings toward them.

Thousands of robots now fight with humans on modern battlefields that resemble scenes from science fiction movies such as "Terminator Salvation." But the real world poses a more complex situation than humans versus robots, and has added new twists to the psychology of war.