system
Given the following post, respond as if you're commenting on Reddit:
human
[Avengers: Infinity War] Since half of all life in the universe was culled, what happened to the state of governments here on Earth?

Immediately after the Snap and the shock of half of all life in the entire universe getting wiped out by Thanos, chaos will be widespread on Earth, what with governments around the world trying to tangle up their internal and regional mess and/or just collapsing under the weight of half of their citizens suddenly disappearing. 

What happened in the weeks, months, and first few years after the Snap, (geo)politically speaking? What does SHIELD (if it still exists), the Avengers, etc. do to help?
gpt
\[SPOILLER\]>>>>>>>>>The avengers spent years monitoring the planet and avoiding total chaos, as it is shown in Endgame, the remnants of the Infinity War (Okoye, Nebula, Captain Marvel, Captain America etc ...) split up to monitor both on Earth and space (Captain Marvel), trying to avoid a generalized anarchy.