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.
Take context from the input text and decide on the accurate relationship between 'Northrop Grumman' and 'Northrop' from the options provided.
Options: owner of, operator, member of, headquarters location