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.
Whereas conventional warfare is used to reduce the opponent's military capability using conventional weapons (rifles, grenades, etc.) and battlefield tactics, unconventional warfare is an attempt to achieve military victory through acquiescence, capitulation, or clandestine support for one side of an existing conflict.