4 detainees confirmed 'enemy combatants'

The four were the first cases, of 21 reviewed thus far, to be decided. There is no appeal.

In a change of policy, the Pentagon stopped on Friday the release of detainees' nationalities when their cases are heard. Nationalities, but not names, of the first 21 were released at their hearings, including five Thursday.

Lt. Cmdr. Beci Brenton, a spokeswoman for the review process, said the decision to stop providing nationalities was made after some countries objected to the release of that information.

Nationalities of those whose cases have been heard and decided starting with the four announced on Friday will be released afterward only if their home governments do not object, Brenton said.

Four additional cases were being heard Friday at Guantanamo Bay, raising the total to 25; their outcome was not expected to be known immediately.