Editing League of Nations (section)

===Colombia and Peru===
{{Main|Colombia–Peru War}}
There were several border conflicts between [[Colombia]] and [[Peru]] in the early part of the 20th century, and in 1922, their governments signed the [[Salomón-Lozano Treaty]] in an attempt to resolve them.{{sfn|Osmanczyk|Mango|2002|p=1314}} As part of this treaty, the border town of [[Leticia, Amazonas|Leticia]] and its surrounding area was ceded from Peru to Colombia, giving Colombia access to the [[Amazon River]].{{sfn|Scott|1973|p=249}} On 1 September 1932, business leaders from Peruvian rubber and sugar industries who had lost land, as a result, organised an armed takeover of Leticia.{{sfn|Bethell|1991|pp=414–415}} At first, the [[Peruvian government]] did not recognise the military takeover, but [[President of Peru]] [[Luis Miguel Sánchez Cerro|Luis Sánchez Cerro]] decided to resist a Colombian re-occupation. The [[Peruvian Army]] occupied Leticia, leading to an armed conflict between the two nations.{{sfn|Scott|1973|p=250}} After months of diplomatic negotiations, the governments accepted mediation by the League of Nations, and their representatives presented their cases before the Council. A provisional peace agreement, signed by both parties in May 1933, provided for the League to assume control of the disputed territory while bilateral negotiations proceeded.{{sfn|Scott|1973|p=251}} In May 1934, a final peace agreement was signed, resulting in the return of Leticia to Colombia, a formal apology from Peru for the 1932 invasion, demilitarisation of the area around Leticia, free navigation on the Amazon and [[Putumayo River]]s, and a pledge of [[non-aggression pact|non-aggression]].<ref>{{cite book|title=The verdict of the League|year=1934|editor=Hudson, Manley|publisher=World Peace Foundation|pages=1–13}}</ref>