Indeed, my understanding is that the British Army was created by and legally answerable to Parliament, unlike the other armed forces. As you mentioned, a remain

Indeed, my understanding is that the British Army was created by and legally answerable to Parliament, unlike the other armed forces. As you mentioned, a remain of mistrust after the monarch was restored to the throne after the civil war (though the navy did remain under the monarch's control). Also, there are royal units within the Army, but the whole of the army is not regimented in this way.