Open border

Many authors, such as John Maynard Keynes, have identified the early 20th century and particularly World War I as the point when such controls became common.

The participants in an 1889 International Emigration Conference in London affirmed “the right of the individual to the fundamental liberty accorded him by every civilised nation to come and go and dispose of his person and destinies as he pleases.

Given the large scale movement of people today for work, holidays, study and other reasons a controlled border also requires internal checks and internal enforcement within the jurisdiction to ensure that any people who have entered the jurisdiction are in fact complying with any border crossing conditions and that they are not overstaying to reside illegally or as an undocumented resident.

[9] Entry status refers to the occupation of someone when and if they are allowed to cross a border, whether they are a student, worker, soldier, immigrant.

Entrants rights and obligations are the restrictions that will be placed on those who have already been permitted to cross a border: you must follow certain rules and regulations given by the government to be allowed to stay in that country.

As seen from the examples below, there are differing degrees of "openness" of a border, the nature of which depends on whether or not there are physical passport controls in place (and enforced).

Examples of the most open type of border include the Schengen zone or the [UK/Ireland] Common Travel Area, where transit across the inter-state frontiers are entirely uncontrolled,[b] and third-country illegal immigration is controlled by internal policing as with any other kind of clandestine entry.

A hybrid of these two possibilities is the border between Russia and Belarus in the Union State which lacks any physical control but formally foreigners are not permitted to use an uncontrolled crossing.

[44] Some estimate that open borders where people are free to move and find work could result in 78 trillion dollars in economic gains.

[45] Those in favor of a global migration policy advocate the adoption of a migratory regulatory system and new criteria to better guaranteed all rights (civil, social and political) for all immigrants.

This narrative claims the more immigrants there are, the bigger the threat there is to the native culture, language, homes, jobs, and even political offices.

[33] Native-born individuals report slightly more positive views when asked about impacts an immigrant may have on their country, especially when considering their contribution to cultural life.

However, when it comes to the labour market, half of the native-born population hold no particular view when it comes to immigrants taking or creating jobs.

Pastor suggests there is a link between California's improved domestic economic stability over the past two decades and its attitudes towards immigrants.

[49] Integration has been defined as the process of immigrant and native born populations changing to resemble one another as a result of the influx of people into a particular territory.

It has been found that more than half of Hispanics support increased security among the border in order to reduce illegal crossings and that countries with a high share of immigrants may be more susceptible to favor right-wing policies such as strict immigration; thus, it has been suggested that successful integration does not guarantee continued patterns for future generations.

Andorra Austria[c] Belgium Bulgaria Croatia Czech Republic Denmark[c] Estonia Finland France[c] Germany[c] Greece Hungary Iceland Italy Latvia Liechtenstein Lithuania Luxembourg Malta Netherlands Monaco Norway[c] Poland Portugal Romania San Marino Slovakia Slovenia Spain Sweden[c] Switzerland Vatican City Border controls persist for travel between the Schengen area and the British–Irish 'Common Travel Area' (see below), though these are relatively lightweight for EU/EFTA/Swiss citizens.

[citation needed] Denmark Finland Iceland Norway Sweden Since 25 March 2001, these five states have also been part of the Schengen Area.

[citation needed] The Faroe Islands are part of the Nordic Passport Union but not the Schengen Area, while Greenland and Svalbard are outside both.

[citation needed] Ireland United Kingdom Belarus Russia Bhutan India Nepal El Salvador Guatemala Honduras Nicaragua Bolivia Colombia Ecuador Peru Argentina Brazil Paraguay Uruguay Antigua and Barbuda Barbados Belize Dominica Grenada Guyana Jamaica Saint Kitts and Nevis Saint Lucia Saint Vincent and the Grenadines Suriname Trinidad and Tobago Bahrain Kuwait Oman Qatar Saudi Arabia United Arab Emirates Burundi Kenya Rwanda Democratic Republic of the Congo South Sudan Tanzania Uganda

As recently as January 2018, there have still been difficulties in the open borders agreement due to tariff disputes between member states.

Border between Spain and Portugal , parties to the Schengen Agreement . Their border is marked with a simple sign and no passport checks or customs controls.
Anarchists protesting against borders with banner reading "No border, no nations"