Eight of the Cuban migrants were repatriated to Cuba on Saturday.
More than 120 soldiers with the 223rd Military Police Company are deploying in support of U.S. Southern Command.
Lawmakers are once again pushing to authorize the transfer of prisoners to the U.S. for emergency medical care.
Rear Adm. John Ring said that detainees may not be receiving adequate medical treatment a day before his firing.
A gaudy boat and a Coast Guard plane spotting people hiding in bushes helped catch 20 people trying to sneak into the U.S.
A small boat overloaded with Cuban migrants was stopped Saturday by the Coast Guard Cutter Charles Sexton.
Cuba said the U.S. is continuing to withhold important information that could help in the investigation.
The slow-moving Sept. 11 war-crimes case at Guantanamo has outlasted the judge.
Any new prisoner would be the first to arrive at Guantanamo since the CIA delivered an Afghan "high-value detainee" in 2008.
The U.S. Coast Guard repatriated 50 Haitian migrants Tuesday to the Haitian Coast Guard.