Unity v06 - The War-Monger (2015)

Out of the darkest recesses of the 20th century...the WAR-MONGER rises to rage against the combined might of Valiant's most elite superteam!
For thousands of years, the Eternal Warrior has waged battle; and for thousands of years, one spirit has vexed him...the spirit of warfare itself. Today, Gilad Anni-Padda and his teammates in Unity must reckon with a long - thought-forgotten enemy-unseen since Unit-Y faced it in World War II - now returned to bring destruction and death to the heroes once and for all. Unity may not survive the coming of War-Monger!
Collecting UNITY (2013-2015) #19-22.