To clear up the confusion, all defined benefit pension plans (includes civil service & military retirements) must meet the requirements for RMD. Technically, any monthly pension payment is considered a Required Minimum Distribution (RMD) and the entire amount is an RMD. That is how you need to answer the questions.
When asked "Was this withdrawal an RMD?", the answer is "Yes". When asked if all or part of the payment was an RMD, check "All of this distribution is an RMD."
