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.

Context : The Soviet RPG-22 Netto is a one-shot disposable anti-tank rocket launcher first deployed in 1985, based on the RPG-18 rocket launcher, but firing a larger 72.5 mm fin stabilised projectile.
Answer : 1985
In what year did RPG-22 enter service?