It's a trap! And Han Solo and his commando squad have been caught firmly in it as they are now paraded out of the Shield Generator Control room by their captors. A great image, which first appeared (as far as I know) in the US Fantastic Films magazine, showing the continued blockbuster action scope of the saga and its latest entry then coming soon to cinemas- a mouth-watering sneak peak (a full size AT-ST Walker on location!) showing LOTS of Imperial Stormtroopers and a chance to see Han Solo back in action, now clearly committed to the Rebel cause, unthawed after the climactic events of The Empire Strikes Back.
It was so great to have Solo/Ford returning for Revenge of the Jedi, as their had been some doubts for a short while back in 1981...
