Unlike Britain France and Russia the US .?

The sentence is incomplete, and there are several possible completions. Here are a few options:

- Unlike Britain, France, and Russia, the US was not a traditional imperial power.

- Unlike Britain, France, and Russia, the US had not been involved in the European power struggles of the 19th century.

- Unlike Britain, France, and Russia, the US had a large and rapidly growing economy that was less dependent on foreign trade.

The meaning of the sentence will depend on the context in which it is used.