In September 1918 at St. Mihiel, the First Army was directly under Pershing's command; it overwhelmed the salient – the encroachment into Allied territory – that the German Army had held for three years.
Pada September 1918 di St. Mihiel, Angkatan Darat Pertama sudah berada di bawah komando langsung Pershing; ia berhasil mengalahkan Jerman di wilayah Sekutu yang telah mereka kuasai selama tiga tahun.