Can you explain why the streets of Moscow and Beijing can accommodate military tanks,but the streets of Washington DC can not?

Remember my friend CSM Charles Hayden
1. the streets of Washington D.C [except Constitution Avenue] were designed in the 18th century and were narrower since traffic was primarily by horse and/or wagon in town. The last war that Washington, DC was threatened in was the U.S. Civil War. Horse and ox-drawn wagons were the primarily means of transportation on roads. Large cannon and howitzers had to be brought in by special routes - often involving barges if near water.
2. It is only the major streets of Moscow and Beijing which can accommodate tanks in general. Moscow and Beijing have been threatened many times and occupied a few times each since the dark ages.
During WWII both Moscow and Beijing were threatened by the Axis powers of Germany and Japan respectively. Communist World Powers and others feel it a duty to parade military might once a year at least :-)

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The track will tear up the warm asphalt, especially if they turn. The bridges may or may not be capable of supporting 72 tons of fun. I noticed commercial lowboys had to bring them in off the rail. The wear surface of asphalt is in top of a concrete base, then road base. Have you seen ruts at stop lights? That’s because commercial trucks caused the base layers to fail. Heavy tracked vehicles cause this. They discuss this in the Heights of Courage about the Israeli Tank BN that saved the country in 1973.

China didn’t care because it was national survival to put down Tiannamin Square. Russian and China dont care that the road gets torn up. They also have relatively fewer miles of paved surface than we do.

Military parades are far more common in China and Russia. Necessity is the mother of invention. Stronger roads or tread inserts would be my guess.