Military officers in Isan, Thailand’s Northeast, intimidated academics and students on environmental research in areas with potash mining planned.    Three military officers from 24th Army Region base in Udon Thani Province on Wednesday morning, 16 September 2015, came to Huai Sampad Sub-district, Prajaksilapakom District, of the province to monitor activities of academics and students while they were in the field research on local environment and public health.