As you are all aware that the British Military took an interest in crop circles in Wiltshire. The reasons for their interest are far simpler than some researchers would like to think. Hype is of course the general rule amongst them as it continues to sell their myths and fables.
*** 2 Primary Factors ***
Due to unexplained radar blips within Wiltshires Militarized zones, for the purpose of National Security, it was and still is the military's duty to investigate and intercept any unidentified craft which does not respond to a radio call . Wiltshire is of course the UKs hot spot for such UFO activity - hence sightings of military helicopter activity is very frequent. Also please do take into consideration that the Vale of Pewsey is surrounded by military bases which use the Wiltshire landscape for military exercises .
Investigating crop circles in the early days was essential by the military due to the hype that crop circles originated from an alien source and the many unexplained radar blips. IF the military found that crop circles were from alien origin then all fields containing the art would have to be cordoned off due to possible contamination and all crop would be deemed as unfit for human or animal consumption. ( No one would be allowed to enter such fields - not even the farmer )
( All astronauts who return from a space mission are screened for any contamination, just in case they bring back some undesirable virus back to earth - the same concerns and principles were applied when investigating the source of crop circles ).
When the military discovered that all crop circles are and were from the human source then contamination concerns were lifted , however the unexplained radar blips continued into late 2011 - since then it has died off quite considerably.
So anyone who still thinks that military make crop circles or even aliens is an absolute nonsense. These type of theories are used by researchers who want to hype up your belief for their own merchandise selling purposes.
All the military are doing is simply protecting UKs air space !!!!!