J-1 semi-autonomous proton cannon

"All guns, fire at will!"

- The commander of the 9th Anti-Aircraft Brigade, giving the order to fire at Republic gunships during the First Battle of Earth

The J-1 semi-autonomous proton cannon was a long range self-propelled artillery piece developed by the Techno Union, and fielded by the Confederacy of Independent Systems. The J-1 was popular on Earth, a member of the Confederacy, Earthlings liked the J-1 for its power, the J-1 was operated by Earth forces for at least 61 years, from the First Battle of Earth of 21 BBY, and was still in service as late as the [[Battle of Earth (