Argon ST Inc. of Fairfax, Va., a developer of command, control, communications, computers, combat systems, intelligence, surveillance and reconnaissance (C5ISR) systems, has announced that Kerry M. Rowe, executive vice president and chief operating officer since 2006, has been promoted to president and chief operating officer, effective immediately. He will continue to report to Terry Collins, CEO and chairman of the board. Rowe will continue to oversee all operating activities, while assuming responsibility for human resources, information technology, facilities, security, government relations, contracts and purchasing. He joined Argon in 2000 as vice president of the C4ISR division. Before that, he spent 16 years at E-Systems Corp., where he was vice president for remote systems in the successor company, Raytheon C3I.