<prompt> Translate the following text to EnglishKama makabila ya kaskazini yalifanya njia hiyo iwe ngumu kulinda kwa uvamizi wao wa mara kwa mara bado ni mjadala kati ya wasomi, lakini inajulikana kwamba wakazi wa eneo hilo hawakuwa tayari kuwapa Waroma uhuru wa kuongoza eneo hilo lote.  <response>: Whether the northern tribes made the pass difficult to defend by their constant raiding is still debated by scholars, but it is known that the local inhabitants werent willing to give the Romans free rein over the whole territory. 