Mountain warfare or alpine warfare is warfare in mountains or similarly rough terrain. The term encompasses military operations affected by the terrain, hazards, and factors of combat and movement through rough terrain, as well as the strategies and tactics used by military forces in these situations and environments.
Mountain ranges are of strategic importance since they often act as a natural border and may also be the origin of a water source such as the Golan Heights. Attacking a prepared enemy position in mountain terrain generally requires a greater ratio of attacking soldiers to defending soldiers than a war conducted on level ground. Mountains present natural hazards such as lightning, strong gusts of wind, rockfalls, avalanches, snowpacks, ice, extreme cold, and glaciers with their crevasses; in these ways, it can be similar to cold-weather warfare. The generally uneven terrain and the slow pace of troop and material movements are additional threats to combatants. Movement, reinforcements, and medical evacuation up and down steep slopes and areas in which even pack animals cannot reach involves an enormous exertion of energy.
Hannibal's crossing of the Alps
In 218 BC (DXXXVI AUC), the Carthaginian army commander Hannibal marched troops, cavalry and African elephants across the Alps in an effort to conquer Rome by approaching it from north of the Italian Peninsula. The Roman government was complacent because the Alps were viewed as a secure natural obstacle to would-be invaders. In December 218 BC, the Carthaginian forces defeated Roman troops, in the north, with the use of elephants. Many elephants did not survive the cold weather and disease typical of the European climate. Hannibal's army fought Roman troops in Italy for 15 years but failed to conquer Rome. Carthage was ultimately defeated by Roman general Scipio Africanus at Zama in North Africa in 202 BC (DLII AUC).
The term mountain warfare is said to have come about in the Middle Ages after the European monarchies found it difficult to fight the Swiss armies in the Alps because the Swiss fought in smaller units and took vantage points against a huge unmaneuverable army.