Answer: adcampaign

AnswerCrossword Clue
ADCAMPAIGNSeries of "Got milk?" spots, e.g.
ADCAMPAIGNMadison Avenue blitz
ADCAMPAIGNBig planning on Madison Avenue
ADCAMPAIGNPR blitz
ADCAMPAIGNSeries of battles within the last two millennia?