<prompt> Translate the following text to EnglishCastillo de la Real Fuerza Mkoba wa Jeshi la Ufalme ni ngome ya kifalme ya Marekani iliyojengwa mwaka 1558.  <response>: The squat but angular and moated Castillo de la Real Fuerza Fort of the Royal Forces, to the north, is one of the oldest forts in the Americas, begun in 1558. 