The Tokugawa family side seemed to have adapted this scorched-earth strategy from one taken by the Russian Empire to city of Moscow, during the military campaign by Napoleon BONAPARTE in '1812' (Please refer to "the Russian military campaign of 1812.").
1812年にナポレオン・ボナパルトの攻撃を受けたロシア帝国がモスクワで行った作戦（1812年ロシア戦役を参照）を参考にしたという。