True, all empires have    stretched militaries but America tries to be in more places at once    than any previous empire but with fewer personell proportionally.
 This  is a very good point...to put things in perspective, the US had   (at  least for some extended time) 160,000 personnel to invade and   occupy all  of Iraq, and only about 20,000-30,000 of those are actual   combat  infantry...Persia invaded Greece with more than 200,000...during   the  Japanese civil war there were battles where each side had   160,000...Russia defended just a single city with ten times that   number  during WWII...and all those countries had less people   to pull from that America currently does today...
Where previous empires economically lost the  ability to maintain   themselves, I believe you may be on to  something...America might lose   its grip because of demographics...
[quote who="MichaelCook"  reply="493" id="2651769"]
Why such a focus  on military strength? Economic  strength is more important while the  risk of M.A.D. looms.
[/quote]
Military  power is simply a representation applying economic  strength...if  military strength is deteriorating, it is because of  economics...a  strong military requires a strong economy, however a  strong economy does  not give a strong military...Japan is a great  example (due to treaties  after WWII) of a powerful economy not backing a  large military...America  before WWI and WWII is another example of a  powerful economy not  choosing to support an equivalent  military...having a military is a  choice, having an economy is not...
[quote  who="Dr Guy" reply="495" id="2651834"]
The American military is most  definitely overstretched...but so has the military of every empire, it  is simply part of being imperialistic...
How is America  Imperialistic?  I am curious where our empire is so I can go visit  it.
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If you want to know how imperialistic the US is, ask  Iraq...or Afghanistan...or Iran...or Japan and Germany (where we still  after 70 years have troops there)...or Russia (where we sent troops to  prevent a communist victory in the civil war)....or Vietnam...or all of  South and Central America...or China (uhm, Taiwan???)...
About the  only place that hasn't felt American imperialism is Africa...because  America doesn't care about Africa...
How about we all sit down and settle everything over a nice game of chess...
 Thank you!!!  Bonus Points for you!  