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.

[Q]: Context : Kaliganj massacre (Bengali: কালিগঞ্জ হত্যাকান্ড) refers to the massacre of unarmed Bengali Hindus fleeing to India in Kaliganj market, in the present day Jaldhaka Upazila of Nilphamari District on 27 April 1971. 
Answer : 27 April 1971
[A]: What is the full date that Kaliganj massacre crashed on?


[Q]: Context : Percy Belgrave Lucas, CBE, DSO and Bar, DFC (2 September 1915 -- 20 March 1998), commonly known as Laddie Lucas, was a Royal Air Force officer, left-handed golfer, author and Member of Parliament (MP). 
Answer : Royal Air Force
[A]: What branch was Laddie Lucas part of?


[Q]: Context : Friedrich Altemeier (born 4 June 1886 in Niederbecksen (today Bad Oeynhausen), died 18 September 1968) was a World War I fighter ace credited with 21 victories. 
Answer : World War I
[A]:
What war or battle did Friedrich Altemeier fight in?