Jim Vaughn Series by Bob Mayer, Robert Doherty

They were the men called upon to do the impossible. A top-secret unit who were tasked with what others would call suicide missions. They were the men who had nothing to lose. Captain Jim Vaughn is a soldier in disgrace. Commanding a special forces mission to capture terrorists in the Philippines, Vaughn's team is destroyed, and when the smoke clears, he is the one made the scapegoat... moreThey were the men called upon to do the impossible. A top-secret unit who were tasked with what others would call suicide missions. They were the men who had nothing to lose. Captain Jim Vaughn is a soldier in disgrace. Commanding a special forces mission to capture terrorists in the Philippines, Vaughn's team is destroyed, and when the smoke clears, he is the one made the scapegoat. Forced into the shadows by the scandal, Vaughn is offered a chance to redeem himself when he is approached by an enigmatic government agent looking for a few desperate men.Vaughn is recruited into a new team, but is shocked to meet his new teammates, a group of men outside of the regular chain of command. These were men who had used up all their second chances. These are men who have crossed the line one too many times. Drug users. Felons. The insane. The terminally ill. These are now the men that Vaughn must trust with his life.This group of outcasts and misfits has been assembled for two reasons--they are skilled, and they are expendable. These are the kinds of men who are needed to attempt missions the government can't acknowledge, the country can't condone, and the team cannot fail. But the deeper Vaughn gets into the unique group, the more he realizes that the organization may be concealing more than the rap sheets of its most unusual operators. A team of such unique properties is the perfect tool to use againt America's enemies...and possibly America itself. less

At the start of the Cold War, the greatest threat to America wasn't the Russians and the looming Communist threat. Rather, it was an elite organization bent on world domination, a group so powerful only nuclear weapons could safeguard against them. The CIA knew what these men were capable of, and in a last ditch attempt to protect America against them, they built two high–security arsenals deep within the earth––one declassified in the Nevada desert, and one heavily under wraps in Antarctica... moreAt the start of the Cold War, the greatest threat to America wasn't the Russians and the looming Communist threat. Rather, it was an elite organization bent on world domination, a group so powerful only nuclear weapons could safeguard against them. The CIA knew what these men were capable of, and in a last ditch attempt to protect America against them, they built two high–security arsenals deep within the earth––one declassified in the Nevada desert, and one heavily under wraps in Antarctica. For over 50 years, no one spoke of The Citadel, the fortress deep under the ice in Antarctica that held the most powerful weapon known to man––until the Organization returned, hellbent on destruction.Captain Jim Vaughn is a government agent known for performing missions no one else wants. So when an old colleague approaches him with an assignment, he can't refuse––even if the mission has been set in motion by a dead man's letter, found in Antarctica and dated 1949. The Citadel has been cracked, and the only man who can safeguard it is Vaughn. Nothing short of the fate of mankind rests on his shoulders. less