The Iron Curtain, Bamboo Curtain...

[HorseSoldier]

I had thought of Banana Curtain for the Havana Pact to be a reference to the historical reference to the strong-man cult of personality 'Banana Republic' type governments of the region. But I don't know if that would work or not. Because it could work for Africa as well... but with Africa it would bee seen as being racist.

Curtains are overdone. What about the "Rum Haze" for Cuba's potential influence.

On the African organization, I don't think any options would be adopted in political discourse for fear of seeming or sounding racist. Informally among the military something not entirely appropriate would probably be prevalent (i.e. modern day "AFRICOM" is usually referred to as "SOULCOM" by a lot of the people that are actually slated to operate there, for better or worse).

[StainlessSteelCynic]

I don't think the "curtain" designation is appropriate for the other power blocs because it's use didn't designate a power bloc nor was it simply describing the border defences and restrictions between east and west.
It was used to describe the notion that like a curtain in a window, we in the west could not see into the east and examine what they were doing. So the "Iron Curtain" label didn't signify the influence of the Soviet Union over the WarPact nations so much as it was a description of the restricted view of Eastern Europe we were able to get.

[Matt W]

First use of Iron Curtain

http://www.historyguide.org/europe/churchill.html