LT. Jonathan A. Maruszewski, an Anchorage, Alaska native and chaplain of 1st Battalion, 3rd Marine Regiment, dons mop gear during annual gas chamber qualification aboard Camp Hansen, Okinawa, Japan, June 26, 2017. The annual training familiarizes Marines with the use of their gas mask to prepare them for a biological or chemical attack. The Hawaii-based battalion is forward deployed to Okinawa, Japan as part of the Unit Deployment Program.

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