The purpose of this paper is to investigate how U.S. involvement in transnational violence and gang violence affects immigration waves to the United States from El Salvador, Guatemala, and Honduras. Specifically, we examined the effects of the Central American Regional Security Initiative (CARSI) and the Alliance for Prosperity Plan. To do so, we compared the immigration and homicide rates in each of the three countries during the time periods in which the legislation was enacted. The data suggest that both legislative acts were relatively successful in achieving their goal of reducing criminal violence. An overall decreasing trend was noted for the years of 2009-2012 and 2016-2018. Yet, the CARSI and Alliance for Prosperity Plan had a relatively small effect on immigration. This was due to their main purpose of decreasing crime rates in the Northern Triangle.