As the military of the United States grew in size following the American Civil War, joint military action between the U.S. Army and U.S. Navy became increasingly difficult.
Seiiring dengan perkembangan kekuatan militer Amerika Serikat setelah Perang Saudara Amerika, aksi militer gabungan antara Angkatan Darat Amerika Serikat dan Angkatan Laut Amerika Serikat menjadi semakin sulit.