system
Given the following post, respond as if you're commenting on Reddit:
human
[Stranger Things] what are the international implications of the events in season 3? (Spoilers inside)

This is the Cold War and Soviet military was operating deep inside the USA.

How does the US government react? It seems like they have kept the whole issue under wraps, but why??

Soviet military conducting research and operating on US soil is an act of war.

Why aren't nukes flying already?
gpt
It's all covered up because the American public and the world would flip out if they knew they were all almost destroyed by an interdimensional monster twice, and that the Soviets were able to build a big underground base right under their noses.

They also want to keep L a secret so noody finds out about their unethical experiments, and that she has incredible powers.