system
Given the following post, respond as if you're commenting on Reddit:
human
[The Walking Dead] What is the state of the rest of the world? The country?
gpt
Small cells of survivors exist all across the world. The United States has collapsed, but many survivors exist in rural america. Some exist in impromptu forts scattered in only the most rural areas of America. The Rocky Mountains, the Nevada desert, the dense marshes of the south and the great forest of the north. The large amounts of firearms that exist in the US have given the survivors a slight fighting chance.

Canada is a barren tundra. Survivors have fled south to escape the harsh Canadian winter. Some survivalist cling to life in the Yukon in small camps, but many have resorted to cannibalism to survive in their remote hideaways.

Survivors exist within Mexico, hiding in the sprawling Mexican deserts. With the government collapsed, the cartels have used their weaponry to create small nations of their own. The savage Mexican gangsters, hardened by years of gang violence, have adapted well to the new world.

Cuba, Haiti, Jamaica, and the Bahamas saw some peace during the early outbreak. This didn't last, as refugees from Florida and Latin America have overwhelmed their shores. This population boom has led to incredibly chaotic outbreaks throughout the Carribean. The only survivors have taken to the seas, traveling the Gulf Coast and scavenging the abandoned ports.

Most of the Brazilians have fled deep into the Amazon. Not many of these survivors could make it, and succumbed to disease and predators. These deaths have led to the Amazon being littered with the undead, lying in wait within the brush. The Brazilians rarely leave their fortified jungle camps for fear of being ambushed. Their settlements, though, are by far the most prosperous in the Americas. Fertile soil has led to an abundance of food for the survivors.

The southernmost people of South America have mostly retreated into the Andes. Many reside in the Incan ruins, repairing the ancient terrace farms to provide food as well as protection from the occasional walker.

The people of the British Isles have regressed to a way of life they haven't known for centuries. Fleeing into the long abandoned medieval ruins, the British have reentered an age of castles and siege warfare in their struggle against the walkers. Antique swords, sabres, pikes, and crossbows have now become the norm for survivors, who have utilized these weapons to dispatch walkers with ease.

Most of mainland Europe has fled into the Appalachian mountains, the forest of Germany, or the mountains of Greece. The catacombs of Paris and Rome now teem with walkers, so many that clearing them all is impossible. Should humanity bounce back, these historic cities are lost to man forever.

India and China, the two most populous nations on Earth, are the most devastated. Roughly a thousand Indians and Chinese have survived the largest outbreak on the planet by fleeing into the ocean. 

Russia's evacuation of the Oblast beyond the Ural mountains has backfired. Siberia is largely infested by Chinese and Central Asian walkers, but many military and civilian settlements still scrape out a living. Compared to the rest of the world, Russia is one of the only nations with an intact military (despite the lack of a nation to fight for).

The Middle East, a region previously plagued by warfare and unrest, had been pushed over the breaking point by the walkers. The nuclear exchange between the Middle Easterners has reduced entire nations into radioactive wastelands owned only by the dead. Some refugees from the Levant managed to escape to Cyprus, where Jews and Muslims maintain an uneasy alliance for survivals sake.

The state of Africa is unknown, as many of the more populous cities have been reduced to nothing but walker nest. It's possible that some militias still survive deeper within the continent, but we cannot be certain.

All in all, no nation still truly stands on Earth. Though many governments still survive within bunkers or isolated military bases, humanity is now nothing more than scattered plots of survivors dotting the world.