A Defense Department analyst pleaded guilty Monday to delivering classified information about US and Taiwanese military communications systems to a Louisiana businessman who was working with the Chinese government. Gregg Bergersen, 51, a weapons analyst who held top secret security clearances, was arrested last month. Prosecutors alleged he divulged military secrets to a New Orleans furniture salesman, Tai Kuo, who turned over the information to communist China. Bergersen pleaded guilty to a single count of conspiring to communicate national defense information to a person not entitled to receive it on Monday. He faces up to 10 years in prison when sentenced on June 20. Bergersen received thousands of dollars in cash from Kuo since March 2007, including $3,000 in cash for playing poker during an April 2007 gambling trip to Las Vegas. Court documents also say that Bergersen thought that Kuo was closely affiliated with the Taiwan Ministry of Defense. He was unaware though that Kuo also maintained contact with a foreign official from Beijing, to whom Kuo was relaying the information.