Complex sentence: One notable instance occurred at the 2005 meeting of the Organization of American States, a U.S. resolution to add a mechanism to monitor the nature of American democracies was widely seen as an attempt at diplomatically isolating both Chávez and the Venezuelan government.
Split into simpler sentences: One notable instance occurred at the 2005 meeting of the Organization of American States. A U.S. resolution to add a mechanism to monitor the nature of American democracies was widely seen as an attempt at diplomatically isolating both Chávez and the Venezuelan government.