How large is the US Navy fleet!? http://www.esquire.com/news-politics/a34752/us-navy-fleet-ships-boats-infographic/
Also, how would America fare against all other countries in war? http://www.businessinsider.com/how-long-would-the-us-military-last-in-a-war-against-the-rest-of-the-world-2016-3