Special Tasks Group
Active:	5 October 583 BCE - 2 March 516 BCE (part of UISTB) 2 March 516 BCE - 10 November 2215 CE (independent)
Organization:	Union Defense Force
Affiliation:	Salarian Union
Branch:	Section TWO Section THREE Section FOUR Section FIVE
Type:	Intelligence service/black ops/special operations
Role:	Provide strategic intelligence on enemy strengths and weaknesses during wartime Gathering, processing and analyzing internal and external Union security information Deconstructing hostile threats Counter-piracy Counter-terrorism Espionage and sabotage Black ops Counter-contraband Quick response
Size:	11.12 million personnel
Part of:	Section ONE
Headquarters:	Site Alpha
Motto:	"Always expect trouble. Failing that, create trouble for someone else."
Engagements:	Wars of Tuchanka Rannochian Civil War Last War of Khar'Shan Rakhana Civil Wars Rachni Wars Krogan Rebellions Unification War Taetrian Civil War Terminus Revolution Terminus-Attican War Council-Terminus War Twelve Days' War Second American Civil War Enael conflict First Contact War Skyllian Blitz Anhur Civil War Krogan Civil Wars Eden Prime War War on Taetrus Collector campaign First War for Omega Reaper War Post-Apocalyptic War
Commanders:	Director Padok Wiks

"Always expect trouble. Failing that, create trouble for someone else."

— STG's motto.

The Special Tasks Group (STG) was a military foreign intelligence and espionage organization that served as the intelligence and special operations service branch of the Union Defense Force, and one of the four uniformed services of the Salarian Union. A successor to the League of One, the STG held a diverse and active military presence across Union territory, and an even larger influence outside and within Council space. Operating in separate cells, STG operations included counter-terrorism, counter-contraband, counter-piracy, assassination, espionage, sabotage and quick response to escalating threats. They could also be called upon by the Council themselves, as was the case during the Battle of Virmire. They were dissolved following the Union's defeat and destruction during the Post-Apocalyptic War.

The STG were headquartered on Sur'Kesh at Alpha Site.