Infrastructure in the United States

"America", "US", "USA", and "United States of America" redirect here. For the landmass comprising North, Central, South America, and the Caribbean, see Americas

The oath of office of the president of the United States is an oath or affirmation required by the United States Constitution before the president of the

Immigration to the United States is the international movement of non-U.S. nationals in order to reside permanently in the U.S. Because the United States is a settler

Healthcare in the United States is subject to far higher levels of spending than any other nation, measured both in per capita spending and as a percentage

The COVID-19 pandemic in the United States is a part of the worldwide pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory