Three days after North Korea launched a full-scale invasion of South Korea in June 1950, the United States invoked a total embargo on exports to North Korea.

NPR: Officially Sanctioned: A Guide to the U.S. Blacklist

The US has maintained a near total trade embargo against Cuba since 1962, but during his first term in office President Barack Obama relaxed restrictions on Cuban Americans' travel to the island and raised the limit on the amount of money they could send to family members there.

BBC: Ex-US government worker Marta Rita Velazquez 'Cuban spy'

After all, this outcome was made virtually inevitable by the Europeans' unwillingness over the past week to implement or enforce what the United States hoped would be the three basic pillars of allied action -- the lifting of the arms embargo against Bosnian Muslims, air strikes and a total shut-down of the Danube and other essential supply lines for the Serbian war machine and economy.

CENTERFORSECURITYPOLICY: The Moment Of Truth: The US Must Stop Serbian Aggression Now