The Muslim Bloc was a coalition of newly-democratic Muslim nation-states in the Middle East on Earth in the early 21st century. In 2031, the Muslim Bloc nations were amongst those who pooled resources with the rest of the world to help divert the orbits of a number of asteroids threatening impact with the planet, endangering all life on Earth.

In 2053, the Muslim Bloc states were amongst those hardest hit by the outbreak of World War III; nuclear weapons detonated over cities such as Riyadh and Mecca, and Jerusalem, a city sacred to Jews and Christians as well as Muslims, was destroyed in the process. (TLE novel: The Sundered)

The exact composition of the Muslim Bloc went unestablished. Whether Jerusalem remained the capital of Israel or was divided between the State of Israel and the State of Palestine, as has been proposed in a number of Israeli-Palestinian peace plans, went unestablished; thus, Jerusalem's status as a city within the Muslim Bloc or within Israel is unknown. The Sundered seems to imply that the Middle East has undergone a democratic revolution by 2031; presumably, there may have been an effective peace in Palestine/Israel as a result.

Earth states, organizations and geographical regions
Planetary State	United Earth	International organizations	United Nations/New United Nations • Great Khanate • Optimum Movement
Africa	Pan-African Alliance	African Confederation (Somalia) • Egypt • Madagascar • Mali • Senegal • South Africa • United States of Africa (Kenya)
Asia and Siberia	Eastern Coalition	Afghanistan • China • India • Indonesia • Japan (Empire of Japan) • Kazakhstan • Korea (S. Korea) • Malaysia • Mughal Empire • Pakistan • Philippines • Russia • Soviet Union • Singapore • Thailand • Tibet
Europe	European Alliance • European Hegemony • European Union • Mediterranean Alliance • United States of Europe	Belgium • Bulgaria • Czechoslovakia • Denmark • France • German Democratic Republic • Germany • Gibraltar • Greece • Hungary • Iceland • Ireland • Italy • Netherlands • Norway • Poland • Portugal • Roman Empire • Serbia • Soviet Union • Spain • Switzerland • Turkey • Ukraine • United Kingdom (England, Scotland, Wales) • Yugoslavia
Middle East	Muslim Bloc	Arabia • Iran • Iraq • Israel • Lebanon • Turkey
North America	Caribbean Alliance	Canada • Confederate States of America • Cuba • Jamaica • Mexico • Panama • Puerto Rico • Tobago • Trinidad • United States of America
Oceania and Antarctica	Australia • Easter Island • New Zealand • Norfolk Island • Pitcairn • Solomon Islands
South America	Brazil • Chile • Venezuela