helicopter earlier. marines have also taken control of the police headquarters. that was one of the main objectives for the forces fighting in the taliban stro stronghold of marjah. later today, president obama will meet with his national security team in the white house situation room to monitor the new u.s.-led offensive in afghanistan. >> reporter: roaming the empty streets of marjah. the u.s. marines from unit 16's alpha company keep a watchful eye over the city from a bazaar. some believe the taliban are just hiding waiting for the opportunity to launch attacks. marines say for the taliban, time is running out. >> once people are on our side, they no longer have a place to hide. it will just be us with the local nationals and all the afghans trying to join together to make a team.