Checkmate (comics)

Checkmate is a fictional covert operations agency within the DC Comics universe. It first appeared in Action Comics #598 and proceeded to have its own ongoing title in Checkmate! (vol. 1). In the wake of events depicted in the mini-series The OMAC Project and Infinite Crisis, Checkmate has been re-chartered as a United Nations Security Council-affiliated agency and has its own new series, Checkmate (vol. 2).