Current local time in Helena, lewis_and_clark County, Montana, Mountain Time Zone - daylight saving time change dates 2018 Local Time in Helena, MT 7:45:08 AM, Monday 15, January 2018 MST AM/PM 24 hours
2. trench warfare-a type of armed combat in which the opposing troops fight from trenches that face each other; instead of the war ending quickly, it became bogged down in trench warfare. armed combat, combat-an engagement fought between two military forces. Translations.
Biological warfare is the deliberate spreading of disease amongst humans, animals, and plants. Biological weapons (BW) introduce a bacteria or virus into an environment for hostile purposes, that is not prepared to defend itself from the intruder.