Task: Question Understanding
Input (English): Context : The Panzerfaust 3 (Tank fist 3 or ``The German RPG'') is a modern disposable recoilless anti-tank weapon, which was developed between 1978 and 1985 and put into service by the Bundeswehr in 1992. 
Question : What year did Panzerfaust 3 come into use?
Output (English): service entry