00507naa#a2200169#i#450# EN\\bibl\95520 20250408172242.2 2307-9401 20250330b2025####ek#y0engy0150####ca RU CHAD'S COMMITMENT WITHIN THE FRAMEWORK OF SECURITY IN THE SAHEL REGION Journal article Rostov-on-Don LLC "Perspektiva" 2025 4 с. Journal article local Политика. 32 Mahamat Timan Nassour w-science.com