Question

Why were tensions heightened among countries in europe after 1900? socialists had seized power. some nations refused to ease with each other. nations began mobilizing war. people were joining the black hand.

Answer 1

After 1900, heightened tensions in Europe were caused by military alliances, territorial ambitions, and nationalism, culminating in the outbreak of World War I following the assassination of Archduke Franz Ferdinand.

Step-by-step explanation:

Tensions were heightened among countries in Europe after 1900 due to a variety of complex factors. These included military alliances, territorial ambitions, and an arms race driven by industrialization. Specifically, Germany's expansionist policies clashed with British colonial interests, leading to a military buildup. The shifting balance of power was disrupted by national rivalries, economic competition, and nationalism, which led to internal conflicts and separatist movements, such as those in the Balkans. The assassination of Archduke Franz Ferdinand, which led to Austria-Hungary's declaration of war on Serbia, triggered a cascade of treaty obligations that brought the great powers into conflict, ultimately culminating in World War I. During this period, Europe's socialist leaders, including Keir Hardie in Great Britain, actively protested against the war, organizing workers to strike in the hope of preventing the conflict.