March 5, 2008 — CUCUTA, Colombia – Venezuela and Ecuador reinforced their borders with Colombia yesterday as the three nations traded increasingly bitter accusations over Colombia’s cross-border strike on a leftist guerrilla base in Ecuador.Rejecting a Colombian apology as insufficient, Ecuador sought international condemnation of the attack during an emergency meeting of the Organization of American States, convened in Washington to help defuse one of South America’s most volatile crises in years.