A regime in this country wore black uniforms and red-and-white checkerboard scarves called krama. (-5[1])In an interview with journalist (10[1])Nate Thayer, this country's former leader denied having “Comrade Ya” tortured and killed at a facility named for poison trees. The Santebal, this country's secret police force, disappeared many of its “New People” from urban centers. (10[1])A (10[1])dictator of this country known as (10[1])“Brother Number One” established (10[1])the “Year Zero” ideology, (10[1])which targeted people for wearing glasses. (10[3]-5[1])From 1975 to 1979, more than a million citizens of this country were murdered in its “Killing Fields.” For 10 points, name this country once ruled by Pol (10[1])Pot’s Khmer Rouge. ■END■ (10[1])