Russia's closest spot to the US is approximately 3 miles (from Alaska).
Canada is close to the US but does not share a land border with it. They are separated by the US-Canada border which is the longest international border in the world.
Mexico is the closest country south of the US, as it borders the US to the south.
There are five US states that touch the Pacific Ocean.AlaskaCaliforniaHawaiiOregonWashington
The US is the closest country.
Hawaii and Alaska do not touch the original country.
Chile is the southern hemisphere country that is closest to the US. Both countries have territories near the 90°W line of longitude at their closest points.
Bahamas
Mexico.
Russia.
Mexico is the Spanish-speaking country closest to the United States.
Mexico is the closest country directly south of the United States.