What is the true definition of an illegal alien?

I am writing a paper on it and I need the true meaning...What is the true definition of an illegal alien?
An illegal alien is a foreign national who resides in another country unlawfully, by either entering that country at a place other than a designated port-of-entry or as result of the expiration of a non-immigrant visa. Alternative terms include ';illegal immigrant'; and the euphemisms ';undocumented immigrant';, ';undocumented worker';, and ';paperless immigrant';.What is the true definition of an illegal alien?
Any person that violates the sovereignty of another country by illegally crossing it's boarder to enter the country, or by over-staying a legal visit. Another name for them would be an ';insurgent';
ILLEGAL ALIENS in America are here only because they are GUILTY of CRIMINAL VIOLATION of our FEDERAL LAWS, Jumping our borders and living in a shadowy underground economy. They are morally culpable for shoving aside those who adhere to the law and enter these United States in orderly and Legal Fashion. Since when do criminals and cheaters receive pride of place for the blessings of liberty, over those honestly, earnestly and faithfully seeking to become American citizens?





President Bush has called for a reasonable and civil debate over the issues of border security and immigration reform. But the American people understand there can be no responsible immigration reform UNTIL OUR BORDERS ARE SECURE. “Guest worker” amnesty programs ARE NOT a part of border security. Amnesty is not the answer. To grant amnesty to these trespassers is to say ';You crossed our borders ILLEGALLY, You BROKE OUR LAWS and now we are REWARDING you with U.S. Citizenship -- Congratulations!';





This is unacceptable.