United States: The United States of America, or the U.S.A. for short, is a federal republic composed of 50 states, 48 of them are contiguous states.
Thailand: Thailand has experienced multiple coups and military dictatorships. Since 2019, it has been nominally a parliamentary constitutional.
Spain: The largest part of Spain is situated on the Iberian Peninsula; its territory also includes the Canary Islands in the Atlantic Ocean.
South Korea: South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korean Peninsula and sharing a land border with North Korea.