How did the Fujiwara family depend on the Minamoto and Taira warrior clans?

The Fujiwara family relied on warrior clans like the Minamoto and Taira primarily to serve as their military arm, as the Fujiwara themselves eschewed violence and lacked military prowess.1

The Fujiwara’s dependence on these clans manifested in several ways:

• Military Enforcement: The Fujiwara utilized these warrior families to suppress provincial rebellions that threatened the stability of the government.1
• Security: Samurai clans served as bodyguards for the great noble houses, including the Fujiwara, as they established a presence near the capital.2
• Client Relationships: The Minamoto, specifically the Seiwa Genji branch, served as long-standing clients to successive Fujiwara regents, providing military strength that ensured the regents' dominance at court.2

However, this reliance proved fatal to Fujiwara political control. As the Fujiwara failed to check the growing influence of these military families, the warriors gained power, land, and prestige. By the 12th century, the Fujiwara were caught in the middle of power struggles between the Minamoto and Taira. Ultimately, the Fujiwara were eclipsed and replaced by the very warrior class they had once looked upon with contempt.12