[Publius6961]

This guy might have the right ideas, but his knowledge of history is shaky.

LOL.

Not nearly as shaky as some people's grasp of the concept of "empire".

[Looking for Diogenes]

Not nearly as shaky as some people's grasp of the concept of "empire".

Here is the 'broad' definition from InfoPlease.

Imperialism, broadly, the extension of rule or influence by one government, nation, or society over another.