Alpha males are generally referred to a the top dog/wolf/etc. in any species. They dominate. All other are subservient to them.
It used to be the U.S. was the Alpha male of all countries.
With Obama as president we’ve become the Zeta Male. The lowest of the low. Constantly sniveling, whining, turning over on our backs with tails tucked between our legs and tongue lolling out.
Witness the mess in the Mideast. Specifically, now, Syria. It took Russia to get them to promise stopping chemical attacks. It took Russia to negotiate Syria turning all weapons over. At this point we became the Delta Male.
Then Syria demanded we pay a billion dollars for the destruction of those weapons. We, who were not at all responsible for their getting those weapons. We fell to being Sigma Males.
Witness the birth of the Zeta Male.