U.S. to unveil over $3 bln in Ukraine aid with new air defense missilesWASHINGTON, Jan 6 (Reuters) - A new U.S. weapons aid package for Ukraine worth more than $3 billion is set to be announced later on Friday and will include Sea Sparrow missiles for air defense and Bradley Fighting Vehicles, according to a document seen by Reuters.The Sea Sparrow missiles will help curb Russian missile strikes on Ukraine, which are intended to exhaust Kyiv's air defenses and damage the country's energy infrastructure.It is currently in production by Raytheon Technologies Corp (RTX.N) and General Dynamics Corp (GD.N).The armored Bradley Fighting Vehicle has a powerful gun and has been used regularly by the U.S. Army to carry troops around battlefields since the mid-1980s.Politico reported on Thursday that the Sea Sparrow System would be used on the Buk launcher, a Soviet-era weapon that Ukraine currently uses."