In the Islamic invasions of India in the middle ages, ghazni and Timur, used that verse, to "slay the idolaters" to slaughter hundreds of thousands of Hindus - even after Indian cities surrendered. In Delhi alone, Timur slaughtered a hundred thousand men. He threatened his own court poet to slaughter idolaters or face execution.

http://www.ibiblio.org/britishraj/Jackson5/chapter09.html https://en.wikipedia.org/wiki/Timur