FORT MEADE, Md. (AP) – An Army private charged in the biggest security breach in U.S. history is trying to avoid trial by claiming he was already punished enough when he was locked up alone in a small cell and forced to sleep naked for several nights.

Pfc. Bradley Manning was expected to testify about his treatment during a pretrial hearing set to begin Tuesday and run through Sunday in a military court at Fort Meade, outside Baltimore.