Because of lack of Russian rocket engine availability...now buying space access from SpaceX:
https://www.reuters.com/technology/northrop-buys-trio-spacex-launches-it-upgrades-antares-rocket-2022-08-08/
Wonder if customers are getting a discount for the much lower cost and more efficient SpaceX launch capability? If not, why would anyone want to use ULA as a middleman?
Putin has compromising information on a former Boeing CE0 and a former President that forced them to bend to his will. Pretty standard KGB espionage technique. Pathetic and Boeing is the opposite of patriotic.
Should have developed engines in the United States and never be forced to rely on a country like Russia. Make you wonder why Boeing wanted a design center in Moscow which had more engineers than the company had in the US.