instruction:
Generate a correct and concise answer for the question based on the words in the context.
question:
Context : The 2007 Balad aircraft crash was a 9 January 2007 airplane incident involving an Antonov An-26 airliner, which crashed while attempting to land at the Joint Base Balad in Balad, Iraq, which was at that time operated by the United States Air Force.
Question : On what date did 2007 Balad aircraft crash occur?
answer:
9 January 2007

question:
Context : Wu Huawen (simplified Chinese: ; traditional Chinese: ; pinyin: Wu Huawen, 1904--1962) was a military commander during the Second Sino-Japanese War and the Chinese Civil War.
Question : What war did Wu Huawen participate in?
answer:
Second Sino-Japanese War

question:
Context : The PIAT was designed in 1942 in response to the British Army's need for a more effective infantry anti-tank weapon, and entered service in 1943.
Question : What year was PIAT made?
answer:
1942