It was active from November 2015 to April 2016 and composed of Sheamus from Ireland, King Barrett from England, Rusev from Bulgaria, and Alberto Del Rio from Mexico.

At Survivor Series on November 22, 2015, Sheamus won the WWE World Heavyweight Championship after cashing in his Money in the Bank contract on Roman Reigns.

[1] Sheamus then defended the title in a rematch on the November 30 episode of Raw, but the match was interrupted by King Barrett, Rusev, and Alberto Del Rio (then the United States Champion).

[3] They were then involved in a 16-man fatal four-way elimination tag team match on the following episode of Raw, facing The Wyatt Family (Bray Wyatt, Braun Strowman, Luke Harper, and Erick Rowan), ECW Originals (Dudley Boyz, Tommy Dreamer, and Rhyno) and the team of Reigns, Ambrose, and The Usos; the match culminated in Reigns pinning Sheamus for the win.

[4] While maintaining a rivalry with Reigns and his allies, League members also had individual storylines; Jack Swagger started a feud with Del Rio over the United States Championship, while Rusev was written into a story with Ryback.

[5] Both of these angles culminated at TLC: Tables, Ladders & Chairs, where all members were successful in their separate singles matches, with Del Rio and Sheamus retaining their championships (the latter needing help from his cohorts).

[8] On the January 11, 2016 episode of Raw, Del Rio lost the United States Championship to Kalisto,[9][10] only to regain it the following day on SmackDown after interference by Barrett.

[3] In March 2016, Pro Wrestling Dot Net writer Haydn Gleed criticized how WWE squandered the four men's combined potential and still never explained in storyline why the League of Nations had formed, noting that they had become "bad guns for hire who never accomplish their task(s)" instead of a "credible threat".

[26] According to sports journalist Dave Meltzer, the faction "wasn't a success" and, along with his pairing with Zeb Colter, saw Del Rio take a less prominent role onscreen as his high-profile feud with John Cena was halted.