India, June 7 -- The United States Army is reportedly preparing contingency plans to carry out military executions for the first time in more than 50 years, according to an internal document reviewed by ABC News.

The plan, referred to internally as "Operation Resolute Justice," outlines procedures that would be activated if presidential approval is granted. It involves the transfer of four military inmates currently on death row from the US Disciplinary Barracks at Fort Leavenworth, Kansas, to the federal execution facility in Terre Haute, Indiana.

If implemented, it would mark the first military execution of service members since 1961, a significant break from decades of non-use of capital punishment within the US armed forces.

While ...