Detailed Instructions: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Problem:Context : The Beretta M9, officially the Pistol, Semiautomatic, 9mm, M9, is a 919mm Parabellum pistol adopted by the United States Armed Forces in 1985.
Answer : 1985
Solution:
What was the year Beretta M9 entered service?