Operation Plowshare occurred in what US state?
Sedan Crater Sedan Crater is the result of the Sedan nuclear test and is located within the Nevada Test Site, 12 mi southwest of Groom Lake, Nevada (Area 51). The crater was listed on the National Register of Historic Places on March 21, 1994. The crater is a man-made object that can be seen from earth orbit with the unaided eye.
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.