Jim Carey in the Mask just repeated a classic military technique on the park bench to Cameron Diaz when he said, "Like Napoleon, I will divide and conquer!" Of course he was talking about a different kind of division.
Divide-and-Conquer is as old as time, and still we never seem to be able to realize when it is being used against us, or even some times, by us.
Another classic example is made very effectively in the cartoon above about our relationship with Iran.
Yes, Divide-and-Conquer are as old as time. So is the quest for Unity-through-Diversity, the sacred battle cry of the Knights of Moleskine Spirit and Ale.
To quote some famous examples:
1) "Every kingdom divided against itself is brought to desolation; and every city or house divided against itself shall not stand." - Matthew 25:14
2) "A house divided against itself cannot stand." I believe this government cannot endure, permanently, half slave and half free. I do not expect the Union to be dissolved — I do not expect the house to fall — but I do expect it will cease to be divided. It will become all one thing or all the other. Either the opponents of slavery will arrest the further spread of it, and place it where the public mind shall rest in the belief that it is in the course of ultimate extinction; or its advocates will push it forward, till it shall become alike lawful in all the States, old as well as new — North as well as South." - Abraham Lincoln
3) "People, I just want to say, you know, can we all get along? Can we get along? Can we stop making it, making it horrible for the older people and the kids?...It’s just not right. It’s not right. It’s not, it’s not going to change anything. Please, we can get along here. We all can get along. I mean, we’re all stuck here for a while. Let’s try to beat it. Let’s try to work it out" - Rodney King