This is a picture on the scramble for Africa. This means that Great Brittian and USA were the two mot powerful contrary's at that time. So they both didn't want to fight each other because they thought that they would lose.
Both of the contrary's went to Africa and got allot of natural resources from them without asking. This made Africa on of the poorest continents. USA and Great Brittian said they were helping them but they were getting a free pass to steal their natural resources. From this both of these contrary's became unstoppable because they stole.