As Exercise Aurora Unfolds,Details from Zapad 17 Emerge - little green men,U-2S Dragon Lady and Swedish SIGINT

Adrenaline is running high in Europe as multiple crucial exercises are underway on both sides of the geopolitical divide.
On 19 September,Exercise Aurora 17 began in Sweden.It is the largest Swedish national exercise in more than twenty years,US European Command said.Augmenting the more than 19,000 Swedish personnel,the US has sent about 1300 Soldiers,Marines and Sailors,and France has contributed air defence forces.
US European Command commander and Supreme Allied Commander Europe,General Curtis M. Scaparrotti,US Army,stated that:
The interoperability and cooperation of Sweden and the US remains vital.*
Aurora 17 is running from 19-27 September.The drills will occur in Malardalen,Stockholm,Gotland and Gothenberg,Sweden.US Forces participating include:
from the US Army:US Army10th Army Air and Missile Defense Command;12th Combat Aviation Brigade;2nd Cavalry Regiment;194th Armored Regiment,Minnesota Army National Guard;134th Infantry Regiment,Nebraska Army National Guard;149th Maneuver Enhancement Brigade,Kentucky Army National Guard;
from the US Marine Corps:Marine Rotational Force Europe 17.2;
from the US Navy:Arleigh Burke-class destroyer USS Oscar Austin (DDG 79);and a P-8A Poseidon from Patrol Squadron 16.*
The forces will train in both defensive and offensive operations;simulated airborne operations;simulated amphibious assault;as well as area security and unit level tactics.*
Meanwhile,sources in theatre,particularly the Finns,have been sharing their observations of Russian/Belorussian Exercise Zapad 17,giving the ambience of Zapad and the response to it:
1.On 16 September,so called "little green men" in unmarked camouflage fatigues appeared on the border with Lithuania,the Swedish publication Cornucopia reported.One photo showed five LGM in a field with balaclavas and kalashnikov rifles;and a second photo shows two LGM,one of whom has removed his balaclava.They are reportedly hybrid warriors,Don Cossack paramilitaries,some of whom were also noted to be active in annexed Crimea and the beseiged Donbas region in Ukraine.*
2.According to another source,a US Air Force U-2S Dragon Lady reconnaissance aircraft departed RAF Fairford,England,at 0655 hours on a Baltic mission on 17 September.
3.On 14 September,the Russian 6th Tank Brigade that had seen heavy fighting in Ukraine in 2014 joined Zapad 17 drills.
4.On 17 September,strategic places in Severodvinsk were masked by aerosol fogging in the framework of Zapad 17.
5.On 18 September,land units of the Russian Baltic Fleet carried out firing in the framework of Zapad 17;while a shipborne strike group of the Russian Northern Fleet supported artillery forces of the Russian Marines.
6.On 17 September,a Swedish SIGINT plane was sent on a mission outside the Russian outpost of Kaliningrad.