Oct. 13, 2009 (United Press International) -- Former Secretary of State Alexander Haig Jr. has resigned from the board of MGM Mirage (NYSE:MGM) in Las Vegas, the casino said Tuesday.

The MGM Mirage did not give a reason for Haig's departure. The retired general has served on the MGM Mirage board since May 1990, the Las Vegas Sun reported.

MGM Mirage Chairman and Chief Executive Officer Jim Murren said, "we are tremendously honored that Gen. Haig has played a key role in the direction of our company for the past 19 years."

"His knowledge and expertise have been instrumental in the success and development of MGM Mirage and we are deeply indebted to him for his contributions to our company," Murren said.

Haig remains chairman of Worldwide Associates, Inc.

Haig has had a full military and political career, serving as chief of staff for President Richard Nixon and Gerald Ford and Secretary of State under President Ronald Reagan. He also served as Supreme Allied Commander of NATO Forces, 1974-79.