the light dragoons have been based at robertson barracks , swanton morley , for the past 15 years .
more than 4,000 people , including school children , lined the streets to say farewell to the reconnaissance unit .
the regiment are packing up and moving some 200 miles to their new home in catterick , north yorkshire .
their commanding officer said it would be ` a strain to leave ' after putting down ` deep roots ' in norfolk .