President Donald Trump’s latest travel limitations may keep fans from the 19 named nations from seeing their athletes compete in some of the globe’s most important sporting events in the next several years,

Here is a closer look at why the administration says it is instituting full bans on foreign nationals traveling to the U.S. from 12 nations.

The travel ban goes into effect Monday, leaving many to fear a future in which they can't visit family or loved ones are unable to escape dire circumstances in their home countries.