About this ebook
上杉景勝は徳川家康から大坂城の豊臣秀頼を打倒するため出陣を要請された。世に言う大坂冬の陣が始まりである。家老・直江兼続が重点的に強化を努めていた鉄砲部隊は、その効果を発揮することができたのか。上杉軍の渾身の活躍がここにある！
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