Triple

Target entity: Russo-Turkish War (1877–1878)
Context triple: [Cossack sabers (shashka), usedInConflict, Russo-Turkish War (1877–1878)]

• A. Russo-Turkish War (1828–1829)
  The Russo-Turkish War (1828–1829) was a major 19th-century conflict between the Russian Empire and the Ottoman Empire that further weakened Ottoman control in the Balkans and the Caucasus and advanced Russian influence in the region.
• B. Russo-Turkish War (1877–1878) campaigns chosen
  The Russo-Turkish War (1877–1878) campaigns were a series of major military operations between the Russian and Ottoman Empires that reshaped the political map of the Balkans and contributed significantly to the independence or autonomy of several Southeastern European states.
• C. Serbian–Ottoman War (1876–1878)
  The Serbian–Ottoman War (1876–1878) was a key Balkan conflict in which Serbia, backed by Russia and other Slavic supporters, fought the Ottoman Empire as part of the broader Eastern Crisis, contributing to the weakening of Ottoman control in the region and paving the way for Serbian independence and territorial expansion.
• D. Russo-Turkish War (1787–1792)
  The Russo-Turkish War (1787–1792) was a late 18th-century conflict between the Russian and Ottoman Empires that furthered Russian expansion and influence around the Black Sea and weakened Ottoman control in the region.
• E. Serbo-Bulgarian War
  The Serbo-Bulgarian War was a brief 1885 conflict in the Balkans between Serbia and the newly unified Bulgaria that helped establish Bulgaria’s military reputation and reshape regional power dynamics.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.