American-Mexican Boundary Disputes and Co-operation
- Regional organizations — Boundaries
Published under the auspices of the Max Planck Foundation for International Peace and the Rule of Law under the direction of Rüdiger Wolfrum.
1 The first Mexican–United States boundary had its origin in the 1819 Treaty of Amity, Settlement, and Limits Between the United States of America and His Catholic Majesty (‘Adams-Onís Treaty’; ‘Florida Purchase Treaty’) by which Spain ceded Florida and confirmed Louisiana as a US territory in exchange for which the US recognized all lands west of Louisiana as Spanish possessions ( Boundaries ; Land Boundaries ). This line of demarcation became the new Mexico–US boundary upon Mexican independence in 1821, and was reconfirmed in the Treaty of Limits between the...