The European member states are countries mainly in Europe, and three outside, that are part of one or more of the four major treaty groups, namely the European Union (EU), NATO, Schengen, and eurozone. Each of these institutions governs a different aspect of the region’s infrastructure. Let’s take a look at each of them.

European Union

The European Union (EU) is a unique economic and political union between 27 European countries. First created as the European Economic Community in the aftermath of WW2, the organization’s main focus was to foster economic cooperation. The idea was simple: countries that trade with one another and become economically interdependent are more likely to avoid conflict. Beginning with six countries in 1958, the European Economic Community has since added 21 more countries (the UK left the EU in 2020), with a primary focus on single or internal markets. Here are the countries that comprise the European Union: What began as a purely economic union has evolved into an organization pioneering the development of many different policy areas. A name change from the European Economic Community to the European Union in 1993 reflected this.

NATO

The North Atlantic Treaty Organization (NATO) exists for the sole purpose of facilitating a political and military alliance between its 30 member countries. Established in 1949 in response to post-WW2 Soviet aggression, NATO exists for the collective defense and security of the group. Members share few laws and regulations. An attack on one constitutes an attack on all, and member states are obligated to defend one another. The chronological timeline of NATO’s expansion since its establishment paints a fascinating picture.

As of 2021, NATO officially recognizes three aspiring NATO members: Bosnia and Herzegovina, Georgia, and Ukraine. Ukraine has voiced its desire to join NATO since 2014 but hasn’t met its political and military criteria.

Eurozone

The eurozone is a geographic and economic region that consists of countries that have adopted the euro as their national currency. Approximately 340 million people live in the euro area. Today, the eurozone consists of 19 countries of the European Union. Here they are: European Union nations that decide to participate in the eurozone must meet a multitude of financial requirements. They include price stability, sound public finances, the durability of convergence, and exchange rate stability. Not all countries have to adopt the currency, though. For example, Denmark has a special opt-out clause to use its own currency and maintain its financial independence.

Schengen

The Schengen Area comprises 26 European countries that agreed to create common entry and exit requirements to remove the need for internal borders. This allows travellers up to 90 days of visa-free travel to any of the countries in the Schengen Area. The border-free Schengen Area guarantees free movement to more than 400 million EU citizens, along with non-EU nationals living in the EU or visiting as tourists, exchange students, or for business purposes. Here’s a list of the 26 countries that are a part of the Schengen Area: Monaco, Vatican City, and San Marino also have open borders with Schengen area countries even though they aren’t part of the treaty. on Even while political regimes across these countries have changed over time, they’ve largely followed a few different types of governance. Today, every country can ultimately be classified into just nine broad forms of government systems. This map by Truman Du uses information from Wikipedia to map the government systems that rule the world today.

Countries By Type of Government

It’s important to note that this map charts government systems according to each country’s legal framework. Many countries have constitutions stating their de jure or legally recognized system of government, but their de facto or realized form of governance may be quite different. Here is a list of the stated government system of UN member states and observers as of January 2023: Let’s take a closer look at some of these systems.

Monarchies

Brought back into the spotlight after the death of Queen Elizabeth II of England in September 2022, this form of government has a single ruler. They carry titles from king and queen to sultan or emperor, and their government systems can be further divided into three modern types: constitutional, semi-constitutional, and absolute. A constitutional monarchy sees the monarch act as head of state within the parameters of a constitution, giving them little to no real power. For example, King Charles III is the head of 15 Commonwealth nations including Canada and Australia. However, each has their own head of government. On the other hand, a semi-constitutional monarchy lets the monarch or ruling royal family retain substantial political powers, as is the case in Jordan and Morocco. However, their monarchs still rule the country according to a democratic constitution and in concert with other institutions. Finally, an absolute monarchy is most like the monarchies of old, where the ruler has full power over governance, with modern examples including Saudi Arabia and Vatican City.

Republics

Unlike monarchies, the people hold the power in a republic government system, directly electing representatives to form government. Again, there are multiple types of modern republic governments: presidential, semi-presidential, and parliamentary. The presidential republic could be considered a direct progression from monarchies. This system has a strong and independent chief executive with extensive powers when it comes to domestic affairs and foreign policy. An example of this is the United States, where the President is both the head of state and the head of government. In a semi-presidential republic, the president is the head of state and has some executive powers that are independent of the legislature. However, the prime minister (or chancellor or equivalent title) is the head of government, responsible to the legislature along with the cabinet. Russia is a classic example of this type of government. The last type of republic system is parliamentary. In this system, the president is a figurehead, while the head of government holds real power and is validated by and accountable to the parliament. This type of system can be seen in Germany, Italy, and India and is akin to constitutional monarchies. It’s also important to point out that some parliamentary republic systems operate slightly differently. For example in South Africa, the president is both the head of state and government, but is elected directly by the legislature. This leaves them (and their ministries) potentially subject to parliamentary confidence.

One-Party State

Many of the systems above involve multiple political parties vying to rule and govern their respective countries. In a one-party state, also called a single-party state or single-party system, only one political party has the right to form government. All other political parties are either outlawed or only allowed limited participation in elections. In this system, a country’s head of state and head of government can be executive or ceremonial but political power is constitutionally linked to a single political movement. China is the most well-known example of this government system, with the General Secretary of the Communist Party of China ruling as the de facto leader since 1989.

Provisional

The final form of government is a provisional government formed as an interim or transitional government. In this system, an emergency governmental body is created to manage political transitions after the collapse of a government, or when a new state is formed. Often these evolve into fully constitutionalized systems, but sometimes they hold power for longer than expected. Some examples of countries that are considered provisional include Libya, Burkina Faso, and Chad.

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