A final attempt was made to reach an agreement with Guatemala before Belize`s independence. Belizean representatives during the talks made no concessions and on 11 March 1981 a proposal called the Heads of Agreement was signed. Although the heads of state and government only partially gave control and access to assets in the nations of the other country, they collapsed when Guatemala renewed its claims on Belize soil and revolted Belizean against the British and their own government, claiming that Belize`s negotiators had made too many concessions to Guatemala. When far-right political forces in Guatemala described the proposals as pay, the Guatemalan government refused to ratify the agreement and withdrew from the negotiations. Meanwhile, the opposition has led violent protests against heads of government in Belize. The protests left four people dead, many injured and property damage to The leaders of the People`s Party and their families. A state of emergency has been declared. However, the opposition has not been able to propose any real alternatives. With the prospect of independence celebrations in the starting blow, the morale of the opposition fell. Independence arrived in Belize on 21 September 1981 without reaching an agreement with Guatemala.
 In September 2005, Belize, Guatemala and the OAS signed the Confidence Building Measures document, in which the parties were required to avoid conflicts or incidents on the ground that foster tensions between them.  In May 2015, Belize authorized Guatemala to hold a referendum asking the International Court of Justice (ICJ) to settle the dispute definitively, although Belize is not prepared to hold such a vote. A previous treaty between the two countries stipulated that such a vote should take place at the same time. Guatemala was originally expected to hold a referendum on the issue in the second round of presidential elections in October 2015, but such a vote was not on the ballot paper.   Article 6 states that «this special agreement enters into force with the exchange of ratification instruments and remains in force, unless the contracting parties are denounced by an agreement between the contracting parties.» An interpretation of the above article seems to indicate that the special agreement does not end in a simple «no» vote in a referendum. It can only end with the agreement of the (two) parties. Article 36.1 of the ICJ Statute states that «the jurisdiction of the Court of Justice covers all cases against which the parties relate, as well as all matters which are particularly foreseen by the Charter of the United Nations or the existing treaties and conventions.» Negotiations between Britain and Guatemala resumed in 1961, but the elected representatives of British Honduras did not have a voice in the talks. George Price declined an invitation from Guatemalan President Ydégoras Fuentes to make Honduras an «associate state» of Guatemala. Price repeated his goal of leading the colony to independence. In 1963, Guatemala interrupted talks and ended diplomatic relations with Britain.
In 1964, Great Britain granted a new constitution to British Honduras. The following year, Britain and Guatemala agreed that an American lawyer appointed by U.S. President Lyndon Johnson would settle the dispute. The draft lawyer`s treaty proposed giving Guatemala such control over British Honduras, including internal security, defence and external affairs, that the territory would have become more dependent on Guatemala than on Britain. The United States supported these proposals. However, all parties in British Honduras condemned these proposals and Price took the initiative by calling for Britain`s independence with appropriate defence guarantees.  Guatemala, which disagrees with both the position of the United Kingdom and Belize, considers that this agreement was a surrender treaty by which Guatemala would renounce its territorial rights only under certain conditions, including the construction of a road between Guatemala and the Caribbean coast.