"Sinestro Corps War" is an American comic book crossover event published by DC Comics in its Green Lantern and Green Lantern Corps titles. Written by Geoff Johns and Dave Gibbons and drawn by Ivan Reis, Patrick Gleason, and Ethan Van Sciver, the 11-part saga was originally published between June and December 2007. In addition to the main storyline, four supplemental "Tales of the Sinestro Corps" one-shot specials and a Blue Beetle tie-in issue were concurrently released.
The story centers around the Green Lanterns of Earth—Hal Jordan, Kyle Rayner, John Stewart and Guy Gardner—and the rest of the Green Lantern Corps as they fight an interstellar war against the Sinestro Corps, an army led by the former Green Lantern Sinestro who are armed with yellow power rings and seek a universe ruled through fear. A 1986 Alan Moore "Tales of the Green Lantern Corps" story was the thematic basis of the storyline. Many characters were changed, killed off or re-introduced as a result of the event.
Critical and fan reception to "Sinestro Corps War" was highly positive. Many reviewers ranked it among the top comic books of the year and the storyline's first issue garnered a 2008 Eisner Award nomination for Best Penciller/Inker or Penciller/Inker Team. The storyline was also a financial success, and several issues underwent multiple printings. "Sinestro Corps War" is the second part of a trilogy in the Green Lantern storyline, preceded by the 2005 miniseries Green Lantern: Rebirth. The conclusion of "Sinestro Corps War" sets up the third and final part of the trilogy, Blackest Night, which was published in 2009.