Klo

The yellow can't be seen from space.

Klo, which is known locally in a term that roughly translates to "the World of Enduring Peace", is a beautiful world. It has lakes, sand, and great canyons of crystal (green), and is inhabited by a passive race of cloven-hooved, pot-bellied puce-skinned organics with small, flesh coloured horns on their heads, elongated ears, and enlarged eyes, known as either Klozians or Klovians.

Fiction

Marvel comics continuity

Marvel The Transformers comics

Unfortunately for Klo, in addition to all of its desirable qualities, it also had a place in the Decepticon star charts—at least, until Bludgeon drove his sword through it at random.

With Cybertron in tatters and apparently disintegrating after the Unicron War, and eager to leave his erstwhile Autobot allies to their certain doom, Acting Commander Bludgeon selected the planet at random as the Decepticons' first new conquest in too long, and the Decepticon fleet spilled over Klo, spreading panic and devastation everywhere. A Savage Circle

"Mornin', Sam."
"Mornin', Ralph."

Although seemingly-mindless, the destruction had a hidden purpose—anticipating, thanks to his discovery of Grimlock's homing beacon, the arrival of the Autobots as avenging angels, Bludgeon intended to use the pillage of Klo to lure them into a final trap.

Thus, Klo was nearly famous for being the site of one of the most successful Decepticon military campaigns of all time—with only one apparent casualty, the Firecon Sparkstalker, accidentally incinerated by one of his own colleagues. The Last Autobot? The Autobots came, saw, and suffered, with almost all of the Autobot survivors destroyed, with the exception of Grimlock, Kup, Prowl, Slag, and Blaster. Fortunately for Klo, however, unbeknownst to Grimlock or Bludgeon, another ship set down on the planet—the Last Autobot, final Guardian of Cybertron, carrying the team of super-heroes known as the Neo-Knights, and, more importantly, Optimus Prime. The shock factor of Optimus' latest return from the grave, coupled with the return to the fray of a still-fighting Grimlock, and the Last Autobot, whose Primus-given skills allowed him to psionically repair and resurrect the fallen Autobots, spelled doom for the Decepticon forces. Bludgeon, claiming defeat, ordered a retreat, telling the Autobots that the war was over, and that the Decepticons, "whipped like curs", would now leave for some solitary asteroid, there to live out their lives in exile.

Should probably leave this out of the brochure.

The Decepticons departed Klo, and Optimus Prime pledged that the Autobots would help the Klozians to rebuild. End of the Road!

Another Time & Place

The rebuilding process took several months, during which time the bodies of the Decepticons killed in the battle were entombed or interred in some fashion. Finally, the Autobots left the planet—at which point a group of the Decepticons quietly returned, and retrieved their fallen brethren, taking them to Hydrus Four. Another Time & Place

2005 IDW continuity

Klo was the site of war crimes committed by the rogue Autobot scientist Flame. When he was arrested under the Tyrest Accord and brought to the Aequitas supercomputer in the Garrus-9 penitentiary, it charged him with the heinous crime of corpse desecration on Klo, among various crimes on other worlds. Due to the damage to morale and the potential for Decepticon propaganda that would occur if the trials were made public, Chief Justice Tyrest, Prowl, Nightbeat, Xaaron, and other Autobot law enforcers agreed to keep the trials secret until the final verdict had been passed.

Years later, Ultra Magnus noted that most of the witnesses who gave evidence (possibly including natives of Klo) had since died. Last Stand of the Wreckers #5

The Autobot space station and Wrecker base Debris was in orbit around Klo for some time. Bullets

Animated cartoon

Klo was part of the Nebulon Republic. The AllSpark Almanac II

Ask Vector Prime

Banzai-Tron and Bludgeon founded a dojo on the world of enduring peace. Backstop would find them and train, Banzai-Tron's last student before he expired from natural causes. Backstop left Bludgeon to his grief, to continue his wanderings through the cosmos. Bludgeon remained behind, eventually growing old himself. After the Cybertronian wars concluded, Backstop and the crew of the Hyperborea traveled to Klo and convinced Backstop's dying master to return to Cybertron. Ask Vector Prime, 2015/09/29

Notes

• According to the original script for "End of the Road!", Klo's lakes are sulfuric. This was not conveyed well in the final publication.