Burger King teaming up with McDonald's? Well, there's something you don't see every day.

The boys at Burger King called out McDonald's in an attempt to create the ultimate burger for a day called "International Day of Peace."

Burger King's idea is that the two companies would come together on this day alone. The staff would wear uniforms that are a blend of both the Burger King and McDonald's attire, and the same would go for the food packaging.

To make matters even more interesting, Burger King even came up with designs of the packaging. They look great, to be honest, and we have no doubt that burger lovers would enjoy whatever both companies could craft in a single entity.

"All these ingredients come together to build the burger some said would never happen. Some say the same thing about world peace," read full page adverts in the Chicago Tribune and the New York Times. "Let's prove them wrong on Peace Day."

How did McDonald's respond to Burger King's peace treaty? Well, not in a way that would please fans. The response sent out by McDonald's on Facebook was quick and to the point, and that is, this ultimate burger, dubbed the "McWhopper," will not happen come September 21, 2015.

While Burger King's offer came off as a means to end the burger wars, the McDonald's reply, which was written by the company's CEO, came off as a little too dangerous. Who knows? Burger King could be using this to gain publicity and McDonald's saw that and chose to stay out of it.

Either way, the ultimate burger, the McWhopper, will have to sit on the sidelines for a few more years unless both companies can come to terms before September 21 to provide the world with the burger that could end all burgers.

At the end of the day, it is easy to create a McWhopper. Just go out and purchase a burger from Burger King and one from McDonald's. Combine them and voila, the unthinkable.

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