A nations power based on wealth is called is usually referred to as GDP, or "Gross Domestic Product" (if I'm understanding the question correctly. Although this isn't always a great indicator of the fundamental "health" of the country.<span />
The 25th Amendment outlines the rules of succession to the U.S.
Presidency and Vice Presidency in the event of either or both of them
dying, withdrawing or being removed from office.
After the battles of Trenton and Princeton the war was in George Washington's favor because of the surprise attacks they captured 1000 enemies in Trenton alone with low casualties on both sides.