Answer:
Serbian nationalism increased tensions within Europe before World War I. Serbia wanted to create a pan-Slavic state in the Balkans which included Bosnia-Herzegovina, held by Austria-Hungary. Serbia was allied with Russia and Austria was allied with Germany. Russia allied with France. A war between Serbia and Austria threatened to involve the whole of Europe.
Explanation:
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Answer:
Galileo was known for being a astronomer. His greatest achievement was for discovering 4 moons of Jupiter. His work also fought conflict with the Catholic Church.
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It's Ireland and England. These are two related countries with intertwined histories, but where the larger neighbor periodically conquered/subjugated/exploited the other