Rearranging the letters of 'Guantanamo' (City on Cuba where is U.S. naval base) gives:
Not Managua.
(by Zoran Radisavljevic by hand) (2003)
Other related anagrams without their own page:
"America's prisoners in Guantanamo bay" -> "Misery, as I am persona non grata in Cuba." (by Tony Crafter using Anagram Genius) (2006) (pending approval)
"Detention" -> "Need it not!" (by Orita Allen using Anagram Genius) (2005)