Rubuta ci gaba ga wannan sakin layi - A ranar 30 ga Janairu, 1889, Breckinridge ya ci gaba da zama brigadier general da Inspector General of Army. An daukaka shi zuwa Babban Janar na masu sa kai a cikin Yakin Mutanen Espanya-Amurka. Ya yi aiki a kan ma'aikatan V Corps a Cuba kuma ya shiga cikin yakin El Caney da San Juan Hill.
, inda aka harbe doki daga ƙarƙashinsa.