Ruck marches, never short on pain and misery, become even worse when you combine Arizona’s high temperatures with gas masks and full packs. The photo, posted to the military’s imagery and ...

Designed by digital artist Milen Ivanov, known for his work in video game vehicle design ... Two military-grade gas masks are included to protect against chemical warfare, tear gas and other ...

Lawyers for Jessie Hoffman Jr. argued that using nitrogen hypoxia to put him to death would violate his constitutional rights ...

Under the protocol, the subject is strapped to a gurney, forced to breathe pure nitrogen gas through a mask placed on their face, depriving them of oxygen.

A sign hanging above the doors to the gas chamber reads, "Even the brave cry here." A dozen at a time, Marines are ushered into a small, dark, brick room. A thick haze of o-Chlorobenzylidene ...

to experience its effects and to know how to properly use a gas mask. SSgt Antonio Garay: Gas chamber's important because it builds confidence. Confidence in the gear, confidence in the drill ...

Now put your books down…and get your gas masks out. Quietly. Now take them carefully out of their boxes - no, no, Isobel, don't drag at it…you show her how to do it, Margaret, will you.

Jessie Hoffman Jr., 46, was put to death at the Louisiana State Penitentiary, defense lawyer Cecelia Kappel said.