Vietnam War remained in the field for four days. Tellingly, South Vietnamese forces were again defeated in June 1965 at the Battle of Đồng Xoài. On 8 March 1965, 3,500 U.S. Marines were unilaterally dispatched to South Vietnam. This marked the beginning of the American ground war. U.S. public opinion overwhelmingly supported the deployment. The Marines' initial assignment was defensive. The first deployment of 3,500 in March 1965 was increased to nearly 200,000 by December. The U.S. military had long been schooled in offensive warfare. Regardless of political policies, U.S. commanders were institutionally and psychologically unsuited to a defensive mission. General William
Air Defence Troops of the Russian Ground Forces km, of short range – up to 30 km, of medium range – up to 100 km, of long range – of more than 100 km. Further development of the Air Defence Troops of the GF is carried out by improving mobility, survivability, covertness of operation, automation’s degree, fire efficiency, expanding parameters of the affected area, reducing the response time and the mass-dimensional characteristics of the guided missile (rocket-artillery) systems. Air Defence Troops of the Russian Ground Forces The Air Defence Troops are an Arm of the Russian Ground Forces, intended to cover troops and facilities from means of air