From their website:
The International Fellowship of Christians and Jews was founded in 1983 to promote understanding and cooperation between Jews and Christians and to build broad support for Israel and other shared concerns. Our vision is that Jews and Christians will reverse their 2,000-year history of discord and replace it with a relationship marked by dialogue, understanding, respect and cooperation.
Based in Chicago and Jerusalem, The Fellowship operates under the leadership of Rabbi Yechiel Eckstein, and is governed by an independent board of directors, people from both faith groups who share our strong belief in building bridges between the Christian and Jewish communities.
30 North LaSalle Street,Suite 4300 Chicago, IL 60602