Zelyonka attack

A zelyonka attack is a form of protest, provocation or violent assault, defined as throwing a solution of brilliant green (Russian: зелёнка, zelyonka, Ukrainian: зеленка, zelenka), a triarylmethane antiseptic dye, on the body (usually face) of a victim. On top of potential danger of vision loss, it is very hard to remove quickly; the complete natural removal may take up to a week. In the 2010s, zelyonka attacks became widespread in Russia and Ukraine by pro-government activists against anti-government political and other personalities.