Operation Plowshare occurred in what US state?
Sedan (nuclear test) Storax Sedan was a shallow underground nuclear test conducted in Area 10 of Yucca Flat at the Nevada National Security Site on July 6, 1962 as part of Operation Plowshare, a program to investigate the use of nuclear weapons for mining, cratering, and other civilian purposes. The radioactive fallout from the test contaminated more US residents than any other nuclear test. The Sedan Crater is the largest man-made crater in the United States, and is listed on the National Register of Historic Places.
Ambush of the steamboat J. R. Williams The ambush of the steamboat "J.R. Williams" was a military engagement during the American Civil War. It took place on May 10, 1864 on the Arkansas River in Indian Territory which became encompassed by the State of Oklahoma. It is popularly termed the "only naval battle" in that landlocked state. It was a successful Confederate attack on the Union Army's lines of supply. The Confederate forces were Cherokee, Chickasaw, Choctaw and Creek Indians led by General Stand Watie, who was a Cherokee.