embassies
Foreign policy is the policy a government follows in its dealings with other countries, including diplomatic, trade, and military relations. It outlines a country's strategies and goals in engaging with the international community to promote its interests and maintain peaceful relations.
If they are representing their country in another country, they would be called Ambassadors If you are talking about congress, there are two types: There are the Senators. 2 per state There are the Representatives of the House. Number of representatives is relative to state population
Information about other countries used to help protect the nation is called intelligence
Goods carried out from countries are called exports. These are products and commodities that are produced in one country and sold to another country for consumption or trade.
When a country chooses not to be involved in foreign affairs, it is often referred to as neutrality or isolationism. This means that the country does not take sides or participate in international conflicts or agreements.
The rules made for making relations with foreign countries is called foreign policy
They're called ambassadors.
The president appoints "Ambassadors" to serve in other countries.
They are called 'International Borders'
parts of countries surrounded by foreign territory is enclave or enclaves.
In general terms a professional who does this is called a "diplomat".
Countries do not have affairs in the way you imply in your question. Countries have foreign relations with other countries and the department that deals with these relationships is called the foreign affairs department.A foreign affairs department will have relations with all countries. some of which will be ambassadorial relationships.
They are called Embassies or an Embassy:)
foreign interference
US cellphones will get signals in foreign countries if and only if your provider has collaboration with any provider in that company in that foreign country.This is called "International Roaming".
It is called imperialism
outsourcing