An Israeli military court has rejected the appeal of a soldier who was jailed for 18 months for killing a wounded Palestinian.The court in Tel Aviv found no reason to accept Elor Azaria's appeal after his conviction on a manslaughter charge.Azaria's trial was passed on February 21, and it deeply divided Israel.In one opinion poll, more than half of Israeli Jews said a defenseless Palestinian wounded man should not be killed on the ground.The court judgment marked a victory for military commanders seeking to preserve its vaunted code of ethics in the army.