Utilize the input text as a context reference, choose the right relationship between 'Northrop Grumman' and 'Northrop' from the options.
Options: headquarters location, member of, operator, owner of

As previously reported, earlier this year, Northrop Grumman announced that Kratos' C5ISR is part of the Northrop ground based strategic deterrent team, and we are looking forward to supporting Northrop, an incredible partner of Kratos’, on this critically important national security program.
owner of