What happened in the Balkans when the Ottoman Empire weakened?

A. Nationalist conflicts बढ़े / Nationalist conflicts increased

Step 1: Identify the concept: this is Balkan crisis. Step 2: When Ottoman power weakened, different groups demanded independence and territory. Step 3: Remember Balkans as conflict zone.

Step 1: concept पहचानें: यह Balkan crisis है। Step 2: Ottoman power कमजोर होने पर अलग groups ने independence और territory की मांग की। Step 3: Balkans को conflict zone से याद रखें।