I heard this one a few years ago in East Germany…..

Erich Honnecker (the president of East Germany) was invited to Moscow
by Gorbachev for a visit. After weeks of preparation by Gorby,
Honnecker arrives in Moscow. As part of of celebration activities,
there is a big parade through the streets of Moscow.

While the two are watching the parade, Gorbachev takes a small boy
aside and asks him, Who is your mother? The child replies, Mother
Russia. And who is your father? asks Gorbachev. The boy answers,
Why, its you Uncle Gorbachev! Finally Gorbachev asks the boy, and
what do you want to be when you grow up? The boy proudly replies,
a good communist!

Erich Honnecker, meanwhile, has been watching this and is very
impressed. So impressed, that he decides to invite Gorbachev to
[East] Berlin for a visit. Again, after weeks of preparation,
Gorbachevs plane lands in Berlin. And again, part of the celebration
includes a parade.

Remembering what Gorbachev did in Moscow, Honnecker repeats the scene:
He asks a little boy in the crowd, Who is your mother? The child
replies the GDR [German Democratic Republic–East Germany]. And
who is your father? asks Honnecker. Why, its you Uncle Honnecker!
replies the child. And what do you want to be when you grow up?
queries Honnecker. Without hesitation, the boy replies, an orphan.