AFRIN, SYRIA - MARCH 18: Free Syrian members are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Books written by jailed PKK head terrorist Abdullah Ocalan, numerous organizational documents, and banners are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Books written by jailed PKK head terrorist Abdullah Ocalan, numerous organizational documents, and banners are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Free Syrian members are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Free Syrian members are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Ammunitions are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )
AFRIN, SYRIA - MARCH 18: Free Syrian members are seen after Turkish military and Free Syrian Army (FSA) on Sunday took control of a large underground ammunition depot in northwestern Syria within the Operation Olive Branch in Afrin, Syria on March 18, 2018. The 150-meter depot, spread over 12 rooms and reinforced by concrete walls, was found in the village of Cuvek, northwest of Afrin. ( Halil Fidan - Anadolu Agency )