The Biden administration is finalizing plans to send the Patriot missile defense system to Ukraine that could be announced as soon as this week, according to two US officials and a senior administration official.Once the plans are finalized, the Patriots are expected to ship quickly in the coming days and Ukrainians will be trained to use them at a US Army base in Grafenwoehr, Germany, officials said.Unlike smaller air defense systems, Patriot missile batteries need much larger crews, requiring dozens of personnel to properly operate them.“And we’re working to make sure that the Ukrainians get those systems as quickly as possible but also as effectively as possible, making sure that they are trained on them, making sure they have the ability to maintain them and all of that has to come together and it is.We have a very deliberate process established by the Secretary of Defense Lloyd Austin in Ramstein, Germany, that meets regularly to make sure that the Ukrainians are getting what they need, when they need it.”CNN’s Haley Britzky, Natasha Bertrand and Ben Kirby contributed to this reporting."