Fantastic! #89

When Magneto traps the Avengers on his island and manipulates the X-Men into attacking them, old enemies are forced into an uneasy alliance. With both teams fighting not just each other but Magneto’s schemes, the clash of ideologies becomes a battle for survival—until the two groups realize their true enemy is one they both must face.

In "The Menace!", an alien crash-lands in a quiet central European village, sending the locals into fear as he begins constructing a mysterious device. As a hostile space fleet approaches, the alien activates his weapon—only for the villagers to realize too late that he was defending them all along.