Russians left, US left, and now Speculation is that Chinese Army is Ready to Enter Afghanistan?

Mao is said to have told a Yugoslav visitor to Peking in 1957, "We have a very large territory and a big population. Atomic bombs could not kill all of us."
"What if they killed 300 million of us? We would still have many people left."

"The atom bomb is a paper tiger"

As to a suspicion that the coronavirus may have escaped, accidentally or otherwise, from a laboratory in the central Chinese city of Wuhan where the virus was first recorded.
Its supporters point to the presence of a major biological research facility in the city. The Wuhan Institute of Virology (WIV) has been studying coronaviruses in bats for over a decade.
Was it modified to be weaponized? Some scientists who were once skeptical of the idea have expressed fresh openness to it.
A classified US intelligence report - saying three researchers at the Wuhan laboratory were treated in hospital in November 2019, just before the virus began infecting humans in the city - began circulating in US media recently.
A World Health Organization (WHO) investigation was supposed to get to the bottom of it, but many experts believed it produced more questions than answers.
WHO is calling for further investigation after the initial 12 day visit report stated that it was highly unlikely that virus escaped the labs.

The more accepted theory argues the virus spread naturally from animals, without the involvement of any scientists or laboratories.