Castle Bravo
Castle Bravo was the first in a series of high-yield thermonuclear weapon design tests conducted by the United States at Bikini Atoll, Marshall Islands, as part of "Operation Castle". Detonated on March 1, 1954, the device was the most powerful nuclear device detonated by the United States and its first lithium deuteride fueled thermonuclear weapon. Castle Bravo's yield was 15 megatons of TNT, 2.5 times the predicted 6.0 megatons, due to unforeseen additional reactions involving Li, which led to the unexpected radioactive contamination of areas to the east of Bikini Atoll.
Lijon Eknilang
Eknilang traveled extensively throughout the United States and Europe to draw attention to the health problems experienced by Rongelap's residents due to Castle Bravo. She has been called an "icon in the Marshall Islands for her international advocacy on behalf of nuclear test victims." Eknilang spoke on behalf of the former residents of Rongelap before the United States Congress. She also spoke before the Advisory Proceedings on the Legality of the Threat or Use of Nuclear Weapons at the International Court of Justice in The Hague in November 1995.