Saudi Arabia has reacted to the Arab Spring by pledging $4 billion in aid to Egypt, and it is expected to help Tunisia as well. Has it become enamored of youthful protests for democracy? The fact that Saudi troops remain in Bahrain, helping crush the movement for greater democracy there, suggests something else is going on. And the invitation from the Gulf Cooperation Council or GCC to Morocco and Jordan to join the group points in the same direction.

My theory is this: for the Saudis, it’s fine if citizens of a fake republic like Tunisia or Egypt demand a real republic with real elections and democracy. But they draw the line at monarchies: kings have to stay in charge. So they lecture the kings of Morocco and Jordan to be careful about too many reforms (if the rumors are correct), and invite them to join the Club of Kings that is the GCC. Presumably financial benefits will follow, so long as the kings don’t play around with any experiments that might give Saudi subjects ideas of their own. And in Bahrain, they put down a revolt that might have brought constitutional monarchy—though admittedly that situation appears far more complex in the eyes of  Saudi royals, as the Bahrainis who would be empowered are Shia whose success might give Saudi Shia unacceptable ideas about their own fate.

Brezhnev explained himself in 1968 as follows in answering claims that after the “Prague Spring,” Czechoslovakia should be allowed to determine its own fate: “the implementation of such ‘self-­determination,’ in other words Czechoslovakia’s detachment from the socialist community, would have come into conflict with its own vital interests and would have been detrimental to the other socialist states.”

The Saudi message may be similar: the implementation of excessive reforms by any king would conflict with his own vital interests and those of other monarchical states, so it will be resisted. Kings have to stick together. Foolish nations that long ago adopted republican forms can go right ahead with their experiments and their revolts.