Picket Force Two was a task force operating within the Chiss Ascendancy's Expansionary Defense Fleet. Following the skirmish above Solitair, its new mission was to patrol a sector beyond the Ascendancy's east-zenith border. After the Defense Hierarchy Council designated Mid Commander Mitth'raw'nuruodo, whose core name was "Thrawn," as the command of the Chiss heavy cruiser Springhawk, there was speculation about him leading the entire task force. Speaker Thistrian from the Chiss Mitth family took an interest in the details of Picket Force Two's assignment upon learning of Thrawn's potential promotion, as the Speaker was concerned with whether the mid commander would be stationed far from the Ascendancy.
Within the current Star Wars canon, Picket Force Two received a mention during flashbacks in the 2020 novel Thrawn Ascendancy: Chaos Rising, which is the initial book of Timothy Zahn's Ascendancy Trilogy. Within the Star Wars Legends continuity, Picket Force Two was first alluded to in Zahn's 1991 novel Heir to the Empire, the first book in The Thrawn Trilogy. Its official designation was revealed in Zahn's 2006 novel Outbound Flight.