Trained Bands were companies of part-time militia in England and Wales. Organised by county, they were supposed to drill on a regular basis, although this was rarely the case in practice. The regular army was formed from the Trained Bands in the event of war, though the inability or unwillingness of many of the bands to serve outside of their home regions often left the army short on manpower compared to the paper strength implied by the Trained Bands rolls. They later became common in the American colonies, where they are normally referred to as Trainbands. Similar organisations include the Dutch Schutterij, and the Swiss militia, elements of which remain in existence today.