It might be four, because all three of them are apart of the axis powers.
An autocracy is a system of government in which supreme power is concentrated in the hands of one person, whose decisions are subject to neither external legal restraints nor regularized mechanisms of popular control (except perhaps for the implicit threat of a coup d'état or mass insurrection).[1] Absolute monarchies (such as Saudi Arabia, the United Arab Emirates, Oman, Brunei and Swaziland) and dictatorships (such as Turkmenistan and North Korea) are the main modern-day forms of autocracy.
In earlier times, the term "autocrat" was coined as a favorable feature of the ruler, having some connection to the concept of "lack of conflicts of interests" as well as an indication of grandeur and power. The Russian Tsar for example was styled, "Autocrat of all the Russians", as late as the early 20th century.
