Dictatorship nations are outlaws. Any free nation had the right to invade Nazi Germany and, today, has the right to invade Soviet Russia, Cuba, or any other slave pen. Whether a free nation chooses to do so or not is a matter of its own self-interest, not of respect for the nonexistent 'rights' of gang rulers. It is not a free nation's duty to liberate other nations at the price of self-sacrifice, but a free nation has the right to do it, when and if it so chooses.
Ayn RandIf there is any one proof of a man's incompetence, it is the stagnant mentality of a worker who, doing some small routine job in a vast undertaking, does not care to look beyond the lever of a machine, does not choose to know how the machine got there or what makes his job possible, and proclaims that the management of the undertaking is parasitical and unnecessary.
Ayn RandThe [U.S.] Constitution is a limitation on the government, not on private individuals ... it does not prescribe the conduct of private individuals, only the conduct of the government ... it is not a charter for government power, but a charter of the citizen's protection against the government.
Ayn Rand