Ilunga Sungu vs Petar II Karadjordjevic

Ilunga Sungu led military campaigns that pushed Luba borders to their maximum extent, incorporating parts of modern-day Zambia and Tanzania. His conquests brought the empire into contact with Swahili traders and new sources of ivory and copper.

Ilunga Sungu opened diplomatic and commercial relations with Swahili city-states on the Indian Ocean coast. This trade brought firearms, cloth, and other goods into the Luba Empire in exchange for ivory, slaves, and copper.

Petar II Karadjordjevic became King of Yugoslavia at age 11 after the assassination of his father, King Alexander I in Marseille. A regency council led by Prince Paul governed on his behalf due to his minority.

Nazi Germany invaded Yugoslavia in response to the coup. Petar II fled the country with his government, establishing a government-in-exile in London. He remained abroad for the duration of World War II, unable to return to his kingdom.

Petar II, at age 17, participated in a military coup that overthrew the regency of Prince Paul. He assumed full royal powers and repudiated Yugoslavia's accession to the Tripartite Pact, aligning the country with the Allies against Nazi Germany.

Following World War II, the communist-led government of Josip Broz Tito abolished the Yugoslav monarchy. Petar II was formally deposed and prevented from returning to Yugoslavia, ending the Karadjordjevic dynasty's rule.