‘THE helicopter book on Vietnam’ — Mike CarltonThe Mekong Delta was one of the most dangerous and fiercely contested theatres of the Vietnam War. Into this volatile arena came a small group of Australian Navy aviators, embedded with the US Army’s 135th Assault Helicopter Company.Operating as an experimental unit known as the EMUs, these Australians flew combat missions at the sharp end of the war, commanding American helicopter crews into heavily defended l...