Russia can deliver because having no industry but military products it makes and inventories war planes. Russia took the planes off the shelf, collected the money and delivered the goods.
It is mercenary motivation with political overtones
The Russkies have been doing this since 1917.
They are practical devils and at this rate, given THIS RESET US President, it's just a matter of time before Soviet, oops, I mean Russian naval forces drop anchor off, America's Eastern seaboard and Pacific coasts while ISIS in Iraq/Syria conquer all of America's (former) allies except...Israel.
Tiny Israel will try to hold off the Caliphate Whores, oops, I mean hoards. The US MUST help halt ISIS before they topple Jordan.