The two countries that border the US is Canda (to the north of the US), and Mexico (to the south of the US).
The two oceans that border the U.S. are the Atlantic and Pacific.
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.
The Saint Lawrence river on the US / Canadian border and the Rio Grande On the US / Mexico border.
Do you mean countries? If you do, the two countries that border the U.S. are Canada and Mexico.
Alaska and Hawai'i have no land border with the rest of the US.
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.
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Mexico and Canada
Canada and Mexico
Mexico/Canada
The two US National Parks that border with Canada are Glacier National Park and Waterton Lakes National Park.