tools that some may may be more effective than a no-fly zone. reporter: tonight, hundreds of millions of dollars in additional weapons are being readied to send to ukraine to fight the russians. 800 anti-aircraft systems. 9,000 shoulder-mounted armor piercing missiles. 7,000 machine guns, shotguns, grenade launchers, mortars, and tiny tactical explosive-laden drones, along with 20 million rounds of ammunition. we re going to give ukraine the arms to fight and defend themselves through all the difficult days ahead. reporter: but the no-fly zone that ukraine s president wanted will not be part of the deal. a no-fly zone would send nail toe aircraft on constant patrol over the skies of ukraine it would mean bringing nato and u.s. forces very close to military engagement with the russians, depending on how nice the russians want to play. reporter: and what any no-fly