"Countries such as the U.S. and Britain have taken it upon themselves to decide for us in the developing world, even to interfere in our domestic affairs and to bring about what they call regime change"

This quote by Robert Mugabe is a criticism of the diplomacy of countries such as the United States and Britain. He is suggesting that these nations have taken it upon themselves to make decisions for nations in the developing world, and even to interfere in their domestic affairs. He is referring to the principle of regime modification, which is when a nation's government is toppled and changed with a brand-new one. This is typically done by foreign powers, and Mugabe is suggesting that this is an unsuitable method for nations to interfere in the affairs of other nations. He is implying that the U.S. and Britain are violating their borders and attempting to enforce their own values and beliefs on other countries. This quote is a criticism of the diplomacy of these countries and a tip that each nation need to be permitted to make its own choices.