Well, lets look at this way. The American Revolution was supported by the French, who sent massive amounts of troops to America, and fought alongside American troops. The American Spirit in the ideas and values that were being fought for were to be picked up by the French, most notably the Marquis de Lafayette. The American Revolution heavily impacted on the French Revolution as the French had spent vast amounts of money on funding the Americans and also supporting their own efforts in the war. If the American Revolution was crushed, then the French economy wouldn't have faltered as much, the American Spirit wouldn't have spread to France, the Revolution could not have begun in the space that it did.