Final answer:
Slobodan Milošević was the Serbian leader who led an ethnic cleansing campaign against Albanians in Kosovo during the breakup of Yugoslavia in the 1990s. He was later arrested and indicted for crimes against humanity related to these actions.
Step-by-step explanation:
Which Serbian leader led an ethnic cleansing campaign against Albanians in Kosovo?
The Serbian leader responsible for leading an ethnic cleansing campaign against Albanians in Kosovo was Slobodan Milošević. His administration aggressively pursued the nationalist agenda of creating a Greater Serbia, which included Kosovo and other regions. During the 1990s, Milošević implemented policies and military actions that led to widespread atrocities, and he was subsequently indicted by the International Criminal Tribunal for charges including ethnic cleansing. The conflict in Kosovo was part of a series of violent confrontations that occurred as a result of Yugoslavia's breakup and included the war in Croatia and Bosnia, where similar acts of ethnic cleansing took place.
Milošević was ultimately arrested for crimes against humanity in 2001 and was transferred to The Hague. Although he died in custody before his trial concluded, the impact of his actions and the conflict in the Balkans remains a significant chapter in the history of the region.