Gunhed.

High-concept Sci-Fi adventure about an island that actually is a computer called Kyron 5, itself created to design and manufacture super-advanced robots to be used as slaves for the rest of the world. One day Kyron decides that human beings are unnecessary, so it declares war on the world. But Kyron cannot be tamed, and after many lives are lost in the attempt, mankind decides to leave Kyron to its own devices.