Infantry numbers 1–200.
A century of assignments.

Choose a regiment

Each page uses the 26th Infantry timeline format. Numbers 92–100 are numbering records: no Regular Army infantry regiments were constituted under those numbers; separately numbered battalions are distinguished. Dated assignments, inactive intervals and incomplete service records remain distinct. Last-documented bars identify gaps in later verification. The 177th and 189th–192d pages flag unresolved regimental identities; similarly numbered brigades are separate organizations.