Porkhov [SEP] inception
Porkhov
Porkhov () is a town and the administrative center of Porkhovsky District in Pskov Oblast, Russia, located on the Shelon River, east of Pskov, the administrative center of the oblast. Population: 
History.
The fortress of Porkhov is believed to have been founded in 1239 by Alexander Nevsky. The timber fortress was sacked by Algirdas (Olgierd) in 1356 and fell in flames in 1387. The Novgorod Republic immediately rebuilt its fortifications in limestone downstream. In 1428, Grand Duke of Lithuania Vytautas destroyed the
components of the 57th Operations Group, placing them all under a single organization. Has trained combat aircrews in adversary threat tactics since its inception.
History Lineage.
- Established as 57th Adversary Tactics Group on 31 Aug 2005
History Assignments.
- 57th Wing, 15 Sep 2005–Present
History Components.
- 64th Aggressor Squadron: 15 Sep 2005–Present
- 65th Aggressor Squadron: 15 Sep 2005–26 September 2014
- 527th Space Aggressor Squadron: 14 Apr 2006–Present
- 547th Intelligence Squadron, 15 Sep 2005–2014
- 57th Adversary Tactics