Mengore (453 m), a prominent hill west of the settlement of Most na Soči, held exceptional strategic importance during the First World War. It formed the core of the Austro‑Hungarian defensive line and controlled the Tolmin bridgehead across the Soča River, one of only two bridgeheads that enabled the Habsburg army to maintain a stable defence on the northern sector of the Isonzo Front.
The entire Mengore area was transformed into a fortified stronghold, interlaced with defensive trenches, communication trenches, rock‑cut shelters and caverns, observation posts, and artillery positions carved directly into the mountainside. The defensive system was designed for layered protection, rapid movement of troops, and effective artillery support. Owing to the natural shape of the terrain, Mengore became one of the strongest defensive points in the Upper Soča Valley.
From 23 May 1915 to 13 September 1917, the area was continuously exposed to Italian attacks and artillery bombardment. Throughout all eleven Italian offensives, Mengore served as a steadfast bastion that resisted repeated attempts to break through toward Most na Soči and deeper into the interior of the Austro‑Hungarian Empire. Its commanding views over the Soča valley and control of key communication routes made it a priority target for the Italian army, yet it remained unbroken.
A turning point came with the Twelfth Isonzo Offensive in October 1917, known as the Battle of Caporetto. The combined Austro‑Hungarian and German forces used the Mengore sector as one of their crucial launching points for the breakthrough. Through a combination of surprise, innovative tactics, the use of gas, and rapid advances along the ridgelines, the Central Powers shattered the Italian front and pushed the Italian army 90 kilometres westward, all the way to the Piave River.
Today, Mengore is part of the Walk of Peace, where restored trenches, caverns, and panoramic viewpoints allow visitors to grasp the scale and intensity of the battles fought here more than a century ago.