During the Malayan Emergency, Britain was the first nation to employ the use of herbicides and defoliants to destroy bushes, food crops, and trees to deprive the insurgents of cover and as part of the food denial campaign in the early 1950s. The 2,4,5-T and 2,4-D (Agent Orange) were used to clear lines of communication and wipe out food crops as part of this strategy and in 1952, trioxone, and mixtures of the aforementioned herbicides, were sent along a number of key roads. From June to October 1952, 1,250 acres of roadside vegetation at possible ambush points were sprayed with defoliant, described as a policy of "national importance". The British reported that the use of herbicides and defoliants could be effectively replaced by removing vegetation by hand and the spraying was stopped. However, after this strategy failed, the use of herbicides and defoliants in effort to fight the insurgents was restarted under the command of British General Sir Gerald Templer in February 1953, as a means of destroying food crops grown by communist forces in jungle clearings. Helicopters and fixed-wing aircraft despatched STCA and Trioxaone, along with pellets of chlorophenyl N,N-Dimethyl-1-naphthylamine onto crops such as sweet potatoes and maize. Many Commonwealth personnel who handled and/or used Agent Orange during the conflict suffered from serious exposure to dioxin and Agent Orange. An estimated 10,000 civilians and insurgents in Malaya also suffered from the effects of the defoliant (though many historians think the number is much larger, given that Agent Orange was used on a large scale in the Malayan conflict and, unlike the US, the British government limited information about its use to avoid negative world public opinion). The prolonged absence of vegetation caused by defoliation also resulted in major soil erosion to areas of Malaya.