The Lasan Suppression represents a triumph for the Imperial military that occurred on the planet of Lasan. This victory took place sometime before the pivotal Battle of Yavin. During this conflict, the Empire's Tango Company distinguished itself, resulting in the awarding of the Imperial Medal of Valor to its members.
It has been verified by the publisher becker&mayer! that Star Wars: Imperial Handbook: A Commander's Guide carries the Star Wars Legends label, even though its publication followed the division of the canon and Legends timelines in April 2014. Nevertheless, certain allusions to canon content are still present within the handbook, including mentions of the Lasan Suppression.