Ieyasu, now in the prime of life,…

Ieyasu, now in the prime of life, has emerged as Hideyoshi’s principal rival.

Hideyoshi fights a battle in 1584 with Ieyasu, who supports Nobunaga's second son.

The cautious Ieyasu, after a few bloody but indecisive skirmishes, had offered a vow of fealty, and Hideyoshi is content to leave Ieyasu's domain intact.