There’s nothing really special to read into this given their regularity over the last few decades. You can see past ones listed on the Vandenberg AFB web site

There’s nothing really special to read into this given their regularity over the last few decades. You can see past ones listed on the Vandenberg AFB web site every year or two. It was more interesting that they delayed one due to the tensions with China a month or so ago, likely to avoid sending the wrong message.