Sengoku - Warring States and the...
Rolf Hedger
The Sengoku period, meaning “Warring States,” was one of the most turbulent and transformative eras in Japanese history. Lasting from the mid-15th century to the early 17th century, it was marked by ceaseless conflict, shifting alliances, and the gradual disintegration of centralized authority. The roots of this period can be traced back to the decline of the Ashikaga Shogunate, the Ōnin War, and the rise of regional warlords known as daimyo, each vying for control over Japan’s fractured political landscape.
The Ashikaga Shogunate, which had ruled Japan since the early 14th century, gradually lost its grip on the country due to internal corruption, weak leadership, and an inability to maintain order. By the mid-15th century, the shogunate had become largely symbolic, with real power resting in the hands of feudal lords. These tensions erupted into full-scale conflict with the outbreak of the Ōnin War (1467–1477), a devastating civil war primarily fought in and around Kyoto. What began as a succession dispute within the shogunate spiraled into a nationwide conflict, leading to the destruction of Kyoto and the collapse of central authority.
With the Ashikaga Shogunate rendered powerless, Japan entered a chaotic era where military might determined control. Local daimyo, originally appointed as provincial governors, seized the opportunity to establish autonomous domains. These warlords fortified their territories, raised armies, and engaged in relentless battles to expand their influence. The traditional system of hereditary rule began to erode as capable military leaders, often of humble origins, overthrew established families. This period saw the rise of powerful daimyo such as the Takeda, Uesugi, and Hojo clans, each striving to dominate the fractured nation.
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