Well a quick calculation shows 4,000 plus miles on the shortest great circle route, but I imagine the actual route was longer. So dragging 4 single engine jets across the pond from South Carolina USA indeed deserves well done. Not sure if a single Voyager could have done the second phase fuel offload wise, but always nice to have multiple tankers for the long overwater portions- also allows one tanker to divert with a diverting fighter and let the rest of the flight carry on.
Agree with Bob, a good time for some happy news.