Rio,4/22/2003(Agência Brasil-ABr) – Minister of Defense, José Viegas, and the commanders of the Air Force, Army and Navy will participate in the opening of the LAD – Latin America Defentech - and International Conference on Defense Technology in Rio de Janeiro today. The event will bring together delegations from 51 countries. This is the fourth LAD. It cost R$5 million and will have 250 defense industry exhibitors from Brazil and abroad who will be presenting equipment and services for security. (AB)