A cikin 1779, Gwamna de Anza na New Mexico ya yi yaƙi kuma ya ci Comanches a ƙarƙashin Cuerno Verde a kudu maso yammacin Colorado. A cikin 1786, de Anza ya yi zaman lafiya tare da Comanches, yana ƙirƙirar kawance da Apaches. Tambaya: wace shekara aka yi zaman lafiya tare da Comanches?
Shekara ta 1786