The U.S. Navy Report of the Search for Amelia Earhart (1937) documents that the search operation began after Earhart’s last transmission and spanned 16 days from July 2, 1937 to July 18, 1937.
July 18, 1937
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temporal
Duration of the official U.S. Navy search operation as recorded in the 1937 Navy report.
The Russian Armed Forces maintain Engineering Troops that are responsible for military engineering tasks, including demining, fortifications, and counter-mobility operations.
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organizational
Engineering Troops perform combat engineering and explosive ordnance disposal roles within the Russian military.