>> They can do that easily without bringing Obama into it at all.<<
So at what point does the command to send troops into, in this case, Afghanistan begin? It would seem that, under your scenario the command could be issued by any one in the chain of command. There has to be an ultimate authority and that is CIC.
Am I the only one here who has bothered to read Lakin's Charge Sheet? He is not being charged with disobeying Obama's orders. He is not being charged with refusing to get on a plane to Afghanistan. He is charged with refusing to obey orders to report to his commanding officer's office and with refusing to report for temporary duty with the 101st. How anyone can come to the conclusion that this means anyone can order an invasion of any country is absolutely insane.
Lakin has to show why the orders of his three superiors were illegal. Long established legal principle is that the authority to issue routine orders does not depend on the President, eligible or ineligible. Therefore in order to beat these charges Lakin needs to show why the orders of Colonel Roberts, Lieutenant Colonel McHugh, and Lieutenant Colonel Judd were illegal, and not whether the Commander-in-Chief is a fraud. He can subpoena any information he needs to do that. But anything on Obama is irrelevant, and two JAG officers have already pointed that out to him.