The US has had wars with its neighbors to the north and south, with military conflicts taking place on what is currently US soil. See: https://en.wikipedia.org

The US has had wars with its neighbors to the north and south, with military conflicts taking place on what is currently US soil. See: https://en.wikipedia.org/wiki/Mexican%E2%80%93American_War https://en.wikipedia.org/wiki/Mexican%E2%80%93American_War and https://en.wikipedia.org/wiki/War_of_1812 https://en.wikipedia.org/wiki/War_of_1812 The British even did heavy damage to Washington DC in 1814, including the Capitol and the White House: https://en.wikipedia.org/wiki/Burning_of_Washington https://en.wikipedia.org/wiki/Burning_of_Washington