Frontier Force usually means any of a Paramilitary type border security or border guard, it can mean any of the following: * Frontier Force Regiment (popularly known as the "Piffers" or the "FF"), one of six Infantry regiments in the Pakistan Army * 5 Gorkha Rifles (Frontier Force), part of the British Indian Army (subsequently part of the Indian Army) * 10th Queen Victoria's Own Corps Of Guides Cavalry (Frontier Force), part of the British Indian Army * 11th Prince Albert Victor's Own Cavalry (Frontier Force), part of the British Indian Army. * 12th Cavalry (Frontier Force), part of the British Indian Army. * 12th Frontier Force Regiment, part of the British Indian Army * 13th Frontier Force Rifles, part of the British Indian Army, formed in 1922 by amalgamation of five existing re