Since its return to democracy in 1990, Chile has been an active participant in the regional and international arena. Chile assumed a two-year non-permanent position on the UN Security Council in January 2003 and was re-elected to the council in October 2013. It is also an active member of the UN family of agencies, serving as a member of the Commission on Human Rights and participating in UN peacekeeping activities. Chile hosted the second Summit of the Americas in 1998, was the chair of the Rio Group in 2001, hosted the Defense Ministerial of the Americas in 2002, and the APEC summit and related meetings in 2004. In 2005 it hosted the Community of Democracies ministerial conference. It is an associate member of Mercosur and a full member of APEC. The OECD agreed to invite Chile to be among four countries to open discussions in becoming an official member.

The United States occupation of Veracruz began with the Battle of Veracruz and lasted for seven months. The incident came in the midst of poor diplomatic relations between Mexico and the United States, and was related to the ongoing Mexican Revolution.