Illegal immigration is a complex and controversial issue that has dominated public discourse in many countries around the world. The term "illegal aliens" refers to individuals who enter or reside in a country without proper authorization or documentation. While the topic of illegal immigration evokes strong emotions and opinions, it is important to approach the discussion with factual information and an understanding of the various factors at play. In this article, we will explore 15 important facts about illegal aliens, shedding light on the demographics, economic impact, legal perspectives, and societal implications of this phenomenon. By delving deep into these facts, we hope to provide a comprehensive and balanced overview of the issue, going beyond the headlines and rhetoric to foster a more informed and nuanced understanding.