The Defense Department will implement a new program this week to compensate former and current servicemembers for each month they involuntarily served from Sept. 11, 2001 to Sept. 30, 2009, a defense official said.

Congress approved an appropriation bill last summer, giving the department $534 million over the next year for an estimated 185,000 servicemembers affected by the “Stop Loss” authority since 9/11, said Sam Retherford, director for the department’s officer and enlisted personnel management office.