WHAT ROLE DOES THE MILITARY PLAY IN AN HEALTHY ECONOMY?

I got up this morning, stared out the window with this thought about the economy running through my mind. I ask myself--what role does the Military play in the growth and health of our economy--as I struggle with the answer to this question--a couple of things popped out, prompting more questions--who makes all the hardware and bullets used/spent in wars throughout the World--some justified, others not? why for centuries we continue to maintain Military presence throughout the World, on foreign soil I asked myself? Then it all came together, THE ECONOMY STUPID--we need workers, manufacturers, suppliers, distributors, warehouses; you need transportation; communication and support equipments etc., all this logistics support the economy--pay our bills, we buy houses, cars, invest, supports commerce--the stores etc. they in turn employ people to meet our needs. All these activities promote job growth, economic prosperity and all is well.That's why for centuries we continue to maintain Military presence throughout the World and still continues the practice today? Military deployment is a necessary evil; and will continue to be until it can be replace with something else--BUT WHAT???--Telecommunication equipments--a viable option--since its economy-of-scale is tremendous; and need the same large support structure as the Military--what are we waiting for? LETS START WITH THE TELECOMMUNICATION INDUSTRIES--APPLE COMPUTER AND OTHERS--THEY MUST  PULL MANUFACTURING FROM FOREIGN COUNTRIES AND BRING IT BACK TO THE USA.
YA--IT WILL REDUCE THE PROFIT MARGIN--BUT IT WILL PUT AMERICANS BACK TO WORK, THAT'S NOT BAD--IS IT? THIS CONFORMS IN MY OPINION--I HAVE NO DOUBT, IT'S THE GREEDY, UNCARING BANKS, WALL STREET, BIG BUSINESSES AND THE CORPORATIONS THAT ARE THE CULPRITS RESPONSIBLE FOR THE STATE OF OUR ECONOMY...THEY ARE THE ONES SCREWING THE AMERICAN PUBLIC--BECAUSE THEY ARE NOT GETTING THEIR WAY WITH LAX REGULATIONS AND GOVT. OVERSIGHT.
IT'S NOT THE PRESIDENT STUPID. YOU WANT TO CUT TAXES,  REDUCE GOVT SPENDING? HOW IN HELL DO WE FINANCE/SUPPORT THOSE OVERSEAS DEPLOYMENT AND THE GOVERNMENT HANDOUT TO THOSE SO CALL ALLIES--OUR CONGRESS AND OUR PRESIDENT LET THESE GUYS SCREW US. THE FALSE ASSUMPTION IS THAT THEY ARE HELPING  US FIGHT TERRIORISM. I SAY NO MORE. AMERICA, YOU ARE NOT LIKE BY MOST NATIONS--WE MUST COME TO GRIPS WITH THAT FACT, AND ACT ACCORDINGLY.