<Li> Nakanu nara, naku made matō, hototogisu (If the cuckoo does not sing, wait for it .) </Li> <P> Oda, known for his ruthlessness, is the subject of the first; Toyotomi, known for his resourcefulness, is the subject of the second; and Tokugawa, known for his perseverance, is the subject of the third verse . </P>

Who were the three strongest samurai leaders (saimyo) that emerged during this period