West Indies power stretched from...?

The West Indies had no power as CMV pointed out. It was an exploited resource during the Industrial Revolution. The Plantation owners took their ill-gotten gains back to their homelands and spent them there on big estates and setting up other businesses. They had trade links both to their home countries and to neighbouring colonies, as well as to West Africa where they sourced their slaves, this was the infamous triangular trade.

See the interesting article below by Harley. He suggests that the Protectionism afforded to the (relatively inefficient) British West Indian sugar industry allowed it to generate profits then spent on the goods of British North America which it was not economic to ship to Europe. This allowed the North America colonies to become established. In time the economics changed in a developed economy and North American timber and other products replaced those of the Baltic region.

There is little evidence that West Indian Plantation money directly supported the Industrial Revolution. In fact, there is little evidence that any colonial money, including Indian did that. Most of the early funding was locally raised often from related activities. The best case could be made out for the Glasgow Tobacco link where money was invested into banking, linen manufacture and eventually into industrialisation.

? ? ? - - - WHAT West Indies power ? ? ?

The whole archipelago has been treated as war trophies during all wars , and as sugar and banana mines during peace , by the Great Powers , ever since Columbus landed in 1492 .

Cuba attempted to do some foreign intervention since the revolution there which brought the Castro regime into power , but that has now effectively ended , as there are no Communist nations to subsidise or arm and train them to do so any more .

And every other island ( except for Tax Havens and Dirty Money Processing Islets ) are dirt poor economic basket cases where the governments are barely in power over their own citizens , let alone others .