A military court was set to hear the case Tuesday of an Army doctor charged with refusing to deploy to Afghanistan because he says he doubts whether President Barack Obama was born in the U.S. and therefore questions his eligibility to be commander in chief. Lt. Col. Terrence Lakin, an 18-year Army veteran from Greeley, disobeyed orders to report earlier this year to Fort Campbell in Kentucky to prepare for deployment, saying he believed the orders were illegal.In a video posted on YouTube, Lakin said he's an 18-year Army veteran who's "choosing to disobey" orders he said are illegal, including an order to deploy to Afghanistan at "great peril" to his career and future. Quantcast"For the first time in all my years of service to our great nation, and at great peril to my career and future, I am choosing to disobey what I believe are illegal orders, including an order to deploy to Afghanistan for my second tour of duty there," Lakin said in the video. Lakin said in the videos that any reasonable person looking at available evidence would have questions about Obama's eligibility to be president and that he had "no choice" but to disobey orders. Lakin said he would "gladly deploy" if Obama's original birth certificate were released and proved authentic. Officials in Hawaii say they have seen and verified Obama's original 1961 birth certificate, which is on record with that state. But birthers have not been satisfied with that assurance or the "Certification of Live Birth" Obama has released, a digital document that is a record of a person's birth in the state but that does not list the name of the hospital where his mother gave birth or the physician who delivered him. Hawaii law has long barred the release of a certified birth certificate to anyone who does not have a tangible interest. In September, a military judge ruled the president's birth certificate is irrelevant in Lakin's case. His lawyer will therefore not be able to raise the issue as a defense for why Lakin, a flight surgeon, did not report for what would have been a second tour of duty in Afghanistan. As a result, his civilian defense attorney, Neal Puckett, says he is not optimistic about Lakin's prospects of being acquitted. He is "probably going to be convicted of something," Puckett said. If convicted of all the charges against him, Lakin faces dismissal from the Army and more than 3 1/2 years in prison. Lakin's trial and a sentencing phase are expected to last two or three days.