For more than half a century, beginning in the 1940s, the US Navy used Vieques, Puerto Rico as a military training ground and bombing site. The Navy has acknowledged using napalm, depleted uranium, and other toxic chemicals and heavy metals on the island. After military exercises ended there in 2003, part of the island was declared a Superfund site. Ongoing cleanup efforts involve open detonation of munitions and open burning, both of which expose local residents to toxic emissions. Join the Cease Fire Campaign and Earth Island's Action for a Livable Tomorrow by signing a letter to Congress demanding installation of a detonation chamber on the island for the safe cleanup of military munitions. A Congressional allocation for this chamber will set a critical precedent for similar cleanup efforts around the country.