Best Answer: They usually live for about 12-15 years. They can live up to 20, but that is extremely rare. I have a sheltie and she is about ten and she sounds like the spitting image of your dog in activity.
In 2015, the US will have a declared military and defense budget of $601 billion, which is more than the next 7 highest spending countries combined. The following graphics show how the US will make use of its billions. Skye Gould/Business Insider.
The military is headed by the President of the US. The U.S. Department of Defense directs the military policies, and is headed by the Secretary of Defense. At around $700 billion (2012 est.), the US has the highest defense budget in the world. Mentioned below are the ranks of the armed forces of US.