Sentence:  Hotel Two-Niner, this is Bravo Six. <WSD>Immediate</WSD> suppression at grid November-Kilo four-five-three two-one-five. Danger Close. I authenticate Golf Echo, over. 
Meaning of the word marked with <WSD> tags:  (An artillery fire mission modifier for to types of fire mission to denote an immediate need for fire: Immediate smoke, all guns involved must reload smoke and fire. Immediate suppression, all guns involved fire the rounds currently loaded and then switch to high explosive with impact fused (unless fuses are specified).)