Sgt. 1st Class Carlos Lazo, public affairs noncomissioned officer for the 200th Military Police Command, poses while wearing a protective gas mask at Fort Meade, Maryland, March 2, 2018, in preparation for the upcoming CS gas chamber training scheduled during the command headquarter’s battle assembly. During the gas chamber, Lazo and the public affairs team conducted a Facebook live event to broadcast the training and give online viewers a first-person glimpse at the training experience.