WARLORD was the boys comic published by D C Thomson that was the main rival to Fleetway's Battle. Indeed it was the success of Warlord that led to Battle being launched in the first place.
It ran from 1974 - 1986 and notched up 627 issues. The main character was Lord Peter Flint, Codenamed Warlord who was a world war II James Bond - indeed the physical look of the character seemed to be based on Roger Moore who was the screen's current 007.
In 1978 the comic had Bullet, another Boys title that had started strongly but was now experiencing falling sales, merged into it but the only story that remained for any length of time was Fireball about a character who was Lord Peter Flint's nephew.
Another long running story was Union Jack Jackson who was a limey soldier fighting with the Americans in the Pacific theater.
I was never a regular reader as a kid, much preferring Battle but I did pick it up from time to time and joined the Warlord Fan Club for which I paid 20p and got a wallet, a badge and a secret code breaker that allowed me to read coded messages in the comics themselves. This was something DC Thompson did across a few of their titles and I remember also being a member of the Dennis the Menace fan club also.