Where would you find a gun along with people in uniform training for war?\nOptions:\n- crime scene\n- backyard\n- police station\n- military base\n- police car
A step-by-step solution is:
military base
A military base is a facility directly owned and operated by or for the military.

Military base shelters military equipment and personnel.

Military base facilitates training and operations.

The personnel in a military base wear uniform and have guns.

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So, the answer is military base