Continent: Europe

Official name: Republic of Serbia

Continent: Asia

Official Name: People's Republic of China

Nature of Regime: Communism

Head of State: Mr. Xi Jinping (since 2013)

Area: 9,600,000 km²

Currency: Yuan (CNY)

Population: 1.4 billion inhabitants

Capital: Beijing

Major Cities: Shanghai, Guangzhou, Tianjin, Chongqing, Hangzhou, Nanjing, Shenzhen, Wuhan, Chengdu, Shenyang

Continent: Oceania

Official Name: New Zealand – Aotearoa (“the land of the long white cloud”, the Māori name for the country).
Type of Government: Parliamentary monarchy.

Head of State: King Charles III, represented since October 21, 2021, by the Governor-General of New Zealand, Dame Cindy Kiro.

Head of Government: Mr. Chris Hipkins, Prime Minister.

Continent: Africa

Official Name: United Republic of Tanzania
Type of Government: Republic

Head of State: Ms. Samia Suluhu HASSAN

Area: 947,300 km²
Currency: Tanzanian Shilling

Population: 63.8 million inhabitants

Capital: Dodoma (official capital, seat of Parliament)

Main Cities: Dar es Salaam (economic capital), Arusha, Zanzibar

Continent: America

Official Name: United Mexican States

Type of Government: Federal Presidential Republic

Head of State: Andrés Manuel Lopez Obrador

Area: 1,972,547 km²

Currency: Mexican peso = 0.051 euros (April 2023)

Population (2021): 126,705,138 inhabitants (World Bank)

Capital: Mexico City

Continent: America

Official Name: United States of America

Type of Government: Federal Republic

Head of the Federal State: Joe Biden

Area: 9,363,123 km²

Currency: US Dollar (USD)

Population (2021): 333 million inhabitants

Capital: Washington D.C.

Main Cities: New York, Los Angeles, Chicago

Continent: Latin America

Official Name: Republic of Colombia

Political System: Presidential Regime

President: Gustavo Petro

Vice-President: Francia Márquez

Area: 1.1 million km²

Capital: Bogotá

Official Language: Spanish

Currency: Colombian Peso (COP)

Population: Approximately 49.6 million inhabitants (World Bank, 2018)

Continent: America

Official Name: Federative Republic of Brazil

Type of Government: Presidential

Head of State: Luiz Inácio Lula da Silva

Area: 8,514,876 km²

Currency: Brazilian Real (BRL)

Population: Over 210 million inhabitants

Capital: Brasília

Major Cities: São Paulo, Rio de Janeiro, Belo Horizonte, Porto Alegre, Salvador, Fortaleza, Curitiba, Recife, Belém, Goiânia

Continent : Africa

Official Name : Republic of South Africa

Nature of the Regime : Parliamentary

Head of State : CYRIL RAMAPHOSA

Area : 1,219,912 km²

Currency : South African Rand

Population (2022, IMF) : 60.1 million inhabitants

Capitals : Administrative : Pretoria/Tshwane

Main Cities : Johannesburg, Durban, Cape Town, East Rand/Ekurhuleni