When the wind subsides, soldiers find themselves in a strange situation where geographical landmarks vanish entirely. There are no border markers, fences, or distinctive rocks. A single misstep can lead a soldier across the border, sparking military skirmishes. These winds are not a brief passing storm, but the ‘120-Day Winds’ or ‘Bad-e Sad-o Bist Roz’, a severe seasonal climate extending from late spring until autumn in the narrow corridor between Iran and Afghanistan.

With wind speeds often exceeding 100 kilometers per hour, visibility drops to zero. Over 70% of border village residents suffer from chronic respiratory ailments and acute eye infections. The psychological toll is equally heavy: living in a persistent gray atmosphere creates continuous tension. Similar to the harsh trials documented in The Tragedy of the Roman Legion in the Great Sand Sea, soldiers stand guard amidst a non-stop whistling sound, keeping their nerves on edge in a blinding dust fog.

Elders in these villages remember when these winds brought a cool breeze instead of suffocating dust. The secret lies in the region’s past geography, featuring Lake Hamoun, a massive freshwater lake that acted as the lifeblood of two countries. The lake’s waters once absorbed summer heat and moderated the air before it reached local homes. Today, like other transformed landscapes explored in Dead Sands or Parallel Life? The Mystery of the Pink Desert, the scene is entirely reversed.

Today, Lake Hamoun has dried up completely, leaving a cracked expanse of land whitened by salt and rusted boats sinking in the sand. This environmental disaster is heavily tied to human decisions. Afghanistan built massive dams along the Helmand River—such as the Kajaki and Kamal Khan dams—to generate electricity and secure irrigation. However, cutting off water to Lake Hamoun meant the seasonal winds now sweep over a dry, mineral-laden bed, hurling polluted dust directly onto Iranian cities.