Rubuta ci gaba don wannan sakin layi - Manufofin Amurka na Amurka don yin tasiri a yankin (musamman ginin Canal na Panama da sarrafawa) ya haifar da rabuwa da Sashen Panama a 1903 da kuma kafa shi a matsayin ƙasa. Amurka ta biya Colombia $ 25,000,000 a cikin 1921, shekaru bakwai bayan kammala tashar, don ramawa ga rawar da Shugaba Roosevelt ya taka wajen ƙirƙirar Panama, kuma Colombia ta amince da Panama a ƙarƙashin sharuɗɗan yarjejeniyar Thomson <unk> Urrutia. Colombia da Peru sun shiga yaki
saboda rikice-rikicen yankin da ke cikin kwarin Amazon. Yaƙin ya ƙare da yarjejeniyar zaman lafiya da Ƙungiyar Al'ummai ta yi. Ƙungiyar ta ba da yankin da ake jayayya ga Colombia a watan Yuni na 1934.