It's a little difficult to believe it's been 10 years since the debut of JLA/Avengers, a crossover that found the greatest heroes of Marvel and DC Comics used as pawns in a cosmic game between Krona and the Grandmaster. Of course, it's also hard to believe there hasn't been another Marvel/DC crossover since then.

In any event,  the Superhero Costuming Forum organized a gathering of cosplayers earlier this month at DragonCon in Atlanta to celebrate the 10th anniversary of the miniseries with -- what else? -- a photo shoot of an elaborate battle between the Justice League of America and the Avengers. Artist George Perez even got in on the action.

Lucky for us, Pat Loika was on had to photograph the costumed brawl. You can see a couple of his photos below, and many more on his Flickr account.