tether than what they had before. jen? you ve been listening there to john kirby, the pentagon press secretary about the latest moves in terms of what the u.s. is prepared to do to stave off any russian invasion of ukraine and how they plan to support nato allies. joining us now is oren liebermann and kimmerly dozier and you ve been listening, along with us. so what one of the questions that the correspondents asked why today, what happened in the past two days. so give us the contempt of why this important to announce today. well john kirby was asked what changed over the course of the last couple of days and he said nothing specific has changed to warrant this prepare to deploy order for up to 8,500 u.s. troops. the decision though was made by secretary of defense lloyd austin to give troops in the united states as much heads up as possible. to be ready to deploy to europe if there is that call. either from the nato response