Thomas Wilhelm, A Military Dictionary and Gazetteer
“ All the efficient parts of an army that may be brought into action are called effective, and generally consist of artillery, cavalry, and infantry, with their necessary appendages, such as hospital staff, wagon-train, etc. Effective forces of a country; all the disposable strength, vigor, and activity of any armed proportion of native or territorial population. The navy of a country must be looked upon as part of the effective force of the country, to which is added the marines.Forcing. The operation of making a bullet take the grooves of a rifle. ”
