He didn’t say he would, he urged current military members to disobey illegal orders, without saying anything about what will happen to anybody who disobeys an order: in order to be acquitted by a court-martial, the Accused would have to prove that the order was illegal - a very high bar. The statement itself is just a restatement of the requirement to obey even orders with which we disagree, but it’s dangerous for the members who are likely to substitute their judgment for that of their superior officers.
Colonel, USAF JAGC (Ret)
I’m going to cite a couple examples where judgment was used.
At abu graib a dog handler was ordered to use his dog to intimidate the prisoners and he refused.
Some of lieutenant calley’s soldiers refused his orders and threats or court martial