These days, it appears that there are few things that Man can do, that a machine could not do as well, or even better. This apparently includes engaging in warfare.

Certainly, defense is an area where no expense is spared in developing the latest technology and improving performance, but sometimes constructing advanced weaponry can take a very long time. For example, the F-22 Raptor fighter jet was the most technologically advanced fighter ever created, designed back in 1983 to give the US military a tactical edge in the Cold War, but it took 22 years – and $39 billion – before it was delivered, 14 years after the fall of the Soviet Union.
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Drones are all around us, in the sky (and now) in the water too. The next time you go fishing, you may pull out a robot, because the Department of Homeland is developing an unmanned underwater vehicle that looks like a tuna fish. In the past, the joke was that a fisherman might pull up a boot–now he’s more likely to reel in a robot.

Smaller or larger versions of fish robots could swim effortlessly through the oceans as they run US military reconnaissance missions or conduct scientific surveys.
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If you happened to look up, you would notice if a drone was tracking you, but what if it looked like an insect–for instance, a butterfly? Israel is creating spy drones that are shaped like butterflies and can flutter into a building in order to gather intelligence.

The RT website reports that these remotely controlled spy drones are equipped with a camera and a memory card. A soldier could simply "take it out of a pocket and send it behind the enemy’s line."
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