In addition to cardiac muscle tissue, the heart wall also contains a dense connective tissue network forming the fibrous skeleton of the heart that reinforces the myocardium internally and anchors the cardiac muscle fibers. This network of collagen and elastin fibres is thicker in some areas than others.
Inactivated in 1946, III Corps was reactivated in 1951 and served on active duty until 1959. Inactivated that year, it quickly returned to duty at Fort Hood during the Berlin Crisis in 1961. In 1962. III Corps was designated as part of the U.S. Army Strategic Army Corps. During the Vietnam conflict, III Corps trained and deployed two field force headquarters and many. combat and combat service support units totaling more than 100,000 Soldiers.
On 21 September 1961 the 5th Special Forces Group, 1st Special Forces, which would eventually be charged with the conduct of all Special Forces operations in Vietnam, was activated at Fort Bragg. It was at this point, in the fall of 1961, that President Kennedy began to display particular interest in the Special Forces.age 6. to the Special Warfare Center in the fall of 1961 to review the program, and it was by his authorization that Special Forces troops were allowed to wear the distinctive headgear that became the symbol of the Special Forces, the Green Beret.