For those of you who don't know. During the imperial age of the late 1800s, king Leopold of Belgium had gained his independence from the united netherlands and the spanish. However, like every european power, he wanted a colony. So the belgians first tried to colonize Hawaii, which they didn't succeed in and would instead acquire Congo through military force. Congo became the private property of Leopold II and from Congo he would extract valuable rubber. The reason you see a bit of Congo cut off in the above picture is because during Belgium's possession of Congo, they forced it's people to gather rubber from the trees. If a person, no matter age or gender did not gather enough rubber, this person would lose a limb. And also because so many were forced to gather rubber instead of hunting or gathering, millions would die from starvation. But everything changed when the fire nation attacked.