British troops used the Mk.V helmet (almost identical to the Mk.III 'Turtle') up to the 1980s. Outside of BAOR exercises, or riots (Aden, N.I. etc) it was rarely worn though. Berets, jungle hats, jungle caps and even the odd knotted hankie, were the preferred head wear of choice, even in combat, as helmets weren't commonly carried on patrol.