The Mighty Thor vs. Juggernaut (Acts of Vengeance, 1989)
Acts of Vengeance was a company-wide fall crossover that was centered on the Avengers and Fantastic Four. After three consecutive fall crossovers were built around the X-Men and related mutant teams, promotional materials teased the idea of a wide array of super-villains facing heroes they had never met (or at least were villains that weren’t part of the heroes’ regular gallery).
The core titles of the crossover include Avengers; Avengers Spotlight; Avengers West Coast; Captain America; Iron Man; Quasar; Thor; and Fantastic Four. Major tie-ins included The Amazing Spider-Man among other Spider-Man titles, Uncanny X-Men and the second Damage Control limited series. An epilogue features in Cloak and Dagger; Web Of Spider-Man and in an Avengers Annual.
From: The Mighty Thor V1 #411 (1989)