AYN AL-ARAB, SYRIA - JANUARY 27: A view of the three-story “underground city,” built by the terrorist organization YPG, operating under the name SDF, beneath a mountain in the town of Sirrin, which is part of the Ayn al-Arab region and connected by numerous tunnels, uncovered in Syria on January 27, 2026. ( Hişam Hac Ömer - Anadolu Agency )
AYN AL-ARAB, SYRIA - JANUARY 27: A view of the three-story “underground city,” built by the terrorist organization YPG, operating under the name SDF, beneath a mountain in the town of Sirrin, which is part of the Ayn al-Arab region and connected by numerous tunnels, uncovered in Syria on January 27, 2026. ( Hişam Hac Ömer - Anadolu Agency )
AYN AL-ARAB, SYRIA - JANUARY 27: A view of the three-story “underground city,” built by the terrorist organization YPG, operating under the name SDF, beneath a mountain in the town of Sirrin, which is part of the Ayn al-Arab region and connected by numerous tunnels, uncovered in Syria on January 27, 2026. ( Hişam Hac Ömer - Anadolu Agency )
AYN AL-ARAB, SYRIA - JANUARY 27: A view of the three-story “underground city,” built by the terrorist organization YPG, operating under the name SDF, beneath a mountain in the town of Sirrin, which is part of the Ayn al-Arab region and connected by numerous tunnels, uncovered in Syria on January 27, 2026. ( Hişam Hac Ömer - Anadolu Agency )
AYN AL-ARAB, SYRIA - JANUARY 27: A view of the three-story “underground city,” built by the terrorist organization YPG, operating under the name SDF, beneath a mountain in the town of Sirrin, which is part of the Ayn al-Arab region and connected by numerous tunnels, uncovered in Syria on January 27, 2026. ( Hişam Hac Ömer - Anadolu Agency )
AYN AL-ARAB, SYRIA - JANUARY 27: A view of the three-story “underground city,” built by the terrorist organization YPG, operating under the name SDF, beneath a mountain in the town of Sirrin, which is part of the Ayn al-Arab region and connected by numerous tunnels, uncovered in Syria on January 27, 2026. ( Hişam Hac Ömer - Anadolu Agency )
AYN AL-ARAB, SYRIA - JANUARY 27: A view of the three-story “underground city,” built by the terrorist organization YPG, operating under the name SDF, beneath a mountain in the town of Sirrin, which is part of the Ayn al-Arab region and connected by numerous tunnels, uncovered in Syria on January 27, 2026. ( Hişam Hac Ömer - Anadolu Agency )

