On July 21, 1924, the Ponce-Castro Oyanguren Protocol was signed between Ecuador and Peru where both agreed to hold direct negotiations and to resolve the dispute in an equitable manner and to submit the differing points of the dispute to the United States for arbitration. Negotiations between the Ecuadorian and Peruvian representatives began in Washington on September 30, 1935. These negotiations were long and tiresome. Both sides logically presented their cases, but no one seemed to give up their claims. Then on February 6, 1937, Ecuador presented a transactional line which Peru rejected the next day. The negotiations turned into intense arguments during the next 7 months and finally on September 29, 1937, the Peruvian representatives decided to break off the negotiations without submitting the dispute to arbitration because the direct negotiations were going nowhere.