The only slightly similar situation I can recall is what happened with Noriega in Panama. There's nothing in the [link|http://www.globalsecurity.org/military/ops/just_cause.htm|Operation Just Cause] timeline that yet matches what's going on in Venezuela.

When Chavez declares war on the US and US personnel are killed, then Chavez will have something to worry about.

I think you're misunderstanding Chavez. He isn't interested in diplomacy with the US. He's interested in being seen as someone who stands up to the US - for domestic and foreign attention.

The US isn't going to attack him because he calls George names. That type of reaction in international relations went out several decades ago.

Cheers,
Scott.