The country which has an exclave that shares a border with both Russia and Canada is the United States. The United States exclave which shares a border with both is the state of Alaska.
The United States
The United States of America.
The United States and Guatemala.
Two countries share a border with the United States. To the north, the US shares a border with Canada. To the south, the US shares a border with Mexico.
Texas is a state of the United States of America. It is not itself a country, and there is no country within the state. There is a country that shares a border with Texas, and that related question is linked below.
Canada shares a border with six states in the United States: Alaska, Washington, Idaho, Montana, North Dakota, and Minnesota.
New Mexico is a US State and Mexico is a soverign country that shares a border with the United States of America.
Many. Here are some examples: Mexico (shares with the United States) Guatemala (Shares with Belize) Spain (Shares with France and Portugual) The dominican Republic (shares with Haiti) Plus the following countries share a border with Brazil: Argentina Venezuela Colombia Peru Bolivia Paraguay Uruguay
The Republic of Ireland.
No. Mexico is an independent country, south of the United States. More specifically, the country of Mexico shares a common border with the US states of California, Arizona, New Mexico and Texas.
The only country that shares a land border with South America is Panama. None of the United States comes anywhere close.