[NeoCaveman]

A definition of "conservative" is needed.

Never an easy task but I'd say there are three pillars
1. limited government aka fiscal conservatives
2. traditional values aka social conservatives
3. strong national defense

I go for all three but also think that people who are "2 out of 3" aren't bad.

[Sonny M]

I would also add free markets, or capitalism.

Some may believe that limited government automatically assumes that, but it does not.

[Reagan Man]

At one time, a strong national defense defined being an American. Today, I don't think you can be a true conservative, without supporting a strong national defense.

IMO, that's why many libertarians and Libertarians can never be part of the contemporary conservative movement in America.