Time of Ending
The Time of Ending is one of the major time periods of the Imperium of Man. It was preceded by the Waning, stretching from mid-M41 to the end of M41. It is the "present day" of the 40k continuity.
The Time of Ending has seen the Tau emerge as a new power on the Eastern Fringe, Tyranids nomnomnom countless planets, and the Necrons begin to awaken from their sixty-million-year slumber. Failbaddon is starting his 13th Black Crusade, an event that would surely be exciting had it not been covered in depth a decade ago. Lugft Huron rebelled in the Badab War and is becoming a major Chaos warlord himself. Rebellions are running like wildfire and the astropathic choir on Terra is constantly bombarded by pleas for help. The Adeptus Mechanicus has found an issue in the Golden Throne that they can't fix. More and more parts of the Imperium are being made the bitch of the Space Marines as Planets, Systems and possibly even entire Sub-sectors of the Imperium are given up for direct governance.
All in all, a bad time to be a High Lord of Terra.
It's much worse to be a citizen though.
Insert non-formatted text here==Massacre of Sanctuary 101== An Adepta Sororitas outpost is built upon a Tomb World, with the Sisters inadvertently waking up its sleeping inhabitants and giving the Ordo Xenos its first concrete confirmation of the existence of the Necrons.
Third War for Amageddon
The second war for Armageddon ended owing to Ghazhgkull getting bored and leaving. Long story short, he comes back with an even bigger WAAAGH! and attacks Hades Hive (the place where Yarrick held out in the last war) by nuking the site from orbit. Well, by dropping asteroids on it actually, but what the hell. He then proceeds to land on the planet and have some extra-large scale battles with the imperial forces on Armageddon. Commissar Yarrick returns to fight his old nemesis. This war hasn't ended yet, in case you haven't noticed.