

When the Swordsman and Power Man split up, Jacques connects with possible Duquesne family relative Georges Batroc, becoming a founding member of "Batroc's Brigade" just in time to charge face-first into Captain America's fists again. Jacques and Erik are even hired by the Mandarin to steal diamonds in Bolivia.

Elihas Starr) accepts them into "Egghead's Emissaries of Evil," who get trounced by Wolverine and the Canadian superhero team "The Flight" (the forerunner to Alpha Flight). The Red Skull recruits them to battle Captain America, and the villainous scientist Egghead (Dr. While the duo is less than successful, Jacques and Erik stick together. The Widow recruits Jacques and Erik Josten - a Wisconsin farm boy who was bombarded with "Ionic Rays" to become "Power Man" - to take on the Avengers. There, he's discovered by Black Widow, who is, at the time, a Russian spy brainwashed by the Chinese to destroy the Avengers. The fictional Sin-Cong Conflict was created to accommodate the comics' "floating timeline" and avoid anchoring Marvel's veterans to specific, fixed historic wars (Steve Rogers and Bucky Barnes notwithstanding), albeit by establishing a " forever war." The issue's appendix notes that the Vietnam War still happened in Marvel Comics. However, "History of the Marvel Universe" #2 named not only Castle and Rhodes, but also the Fantastic Four's Reed Richards and Ben Grimm (both originally World War II veterans), as having served in "the Sin-Cong Conflict."

In the wake of the September 11 attacks, Marvel Comics retconned a number of its Vietnam veterans into having served in the Middle East instead. Sin-Cong has been a thinly veiled stand-in for Vietnam since it first appeared in "Avengers" #18 in 1965, but the real-life Vietnam War still featured in the original backstories of American military veterans Frank Castle (the Punisher), James Rhodes (War Machine), and Flash Thompson (the high school frenemy of Peter Parker).
