TASK DEFINITION: Generate a correct and concise answer for the question based on the words in the context.
PROBLEM: Context : The .30-06 Springfield cartridge (pronounced ``thirty-aught-six'' or ``thirty-oh-six''), 7.62×63mm in metric notation and called ``.30 Gov't '06'' by Winchester, was introduced to the United States Army in 1906 and later standardized; it remained in use until the early 1980s. 
Question : What year did .30-06 Springfield come into use?

SOLUTION: 1906

PROBLEM: Context : In 1918 tragedy struck, when both Rose Cleveland and Nelly Erichsen were carried off by the 1918 flu pandemic which decimated the post-war World. 
Question : What diseased did Nelly Erichsen struggle with?

SOLUTION: 1918 flu pandemic

PROBLEM: 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?

SOLUTION:
9 January 2007