Sh1n reposted an update from DefenceGeek reporting that two additional 100th Aerial Refuelling Wing tankers had departed RAF Mildenhall (EGUN) after ground crews made them flyable.

DefenceGeek wrote:

As of moments ago, two further 100th Aerial Refuelling Wing tankers have departed RAF Mildenhall (EGUN) to disperse, after ground crews were able to get them flyable. Further, 2 of the non-100th ARW assets that moved last night, have now continued their own respective missions to other bases in Europe.

The update estimated that six tankers remained at RAF Mildenhall, including four that had not flown during the month and were believed to be broken or undergoing maintenance.

Tankers carrying the tail marking "(D) USAFE" belong to the 100th ARW and are normally based at RAF Mildenhall. DefenceGeek said they would return after the current security situation was resolved.

In an earlier quoted post, DefenceGeek reported that aircraft tracked leaving RAF Mildenhall overnight had dispersed to a mixture of sites in Germany, Spain and Scotland. The post said the movements appeared to have been organized hastily, resulting in a mixture of operational and training callsigns. Some aircraft reportedly remained at the base because they were undergoing maintenance or otherwise unable to fly.

The reporting credited @MATA_osint.