Located near Iran’s eastern frontier, Birjand functions as an inland control point between central Iran and the Afghanistan borderlands. Its elevation and remoteness historically limited exposure while reinforcing administrative reach.

Birjand’s relevance grew with modern state consolidation and the need to manage eastern routes, migration, and security spillovers from Afghanistan. It serves as a governance anchor in a low-density but strategically exposed province.

Birjand was a regional town on the ancient caravan routes crossing eastern Iran toward Central Asia and Afghanistan through the Safavid and Qajar periods, notable as an oasis settlement on the edge of the Dasht-e Lut. Its elevation as a provincial capital under Pahlavi administrative reorganisation brought new infrastructure and road links to the interior.

After 1979 the Islamic Republic reinforced its security and administrative apparatus in the east, and Birjand continues as the main urban centre of South Khorasan province, managing a border region that faces Afghanistan across its entire eastern extent.

Today Birjand hosts provincial administration, education, and logistics services. Its strategic value lies in monitoring eastern transit, supporting border security, and providing redundancy for governance away from major population centers.