ʙʀɪᴛɪꜱʜ ᴀʀᴍʏ ᴀʀᴍʏ ʙᴇ ᴛʜᴇ ʙᴇꜱᴛ The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces among its relatives including the Royal Navy and the Royal Air Force. The Army traces back to 1707 with the English and Scot Army created during the Restoration in 1660. Members of the British Army swear allegiance to the Monarch as their commander-in-chief. ᴀᴄᴛɪᴠᴇ ꜰʀᴏᴍ ʀᴏʟᴇ Land Warfare