The United States has imposed a ban on arms sales to Venezuela because of what U.S. officials say is a lack of support for counter-terrorism efforts.
A U.S. State Department spokeswoman Monday accused Caracas of failing to stop Colombia's leftist guerrillas from using Venezuelan soil.
Venezuela has repeatedly denied allowing access to Colombian fighters.
The U.S. ban is likely to further strain relations between Washington and Caracas.
Venezuelan President Hugo Chavez has frequently condemned the U.S.-led war in Iraq and criticized Washington for planning a military strike in Iran.
Speaking in London today, the Venezuelan leader called on the international community, especially Europe, to prevent military action in Iran because of its nuclear program.
Some information for this report was provided by AFP, AP and Reuters.