Is this a complete sentence In 2010, people in Madagascar were forced to drink from muddy puddles much illness was the result.

I think it is but I would say

In 2010, people in Madagascar were forced to drink from muddy puddles leading to people getting ill

In the aftermath of World War I, Germans struggled to understand their country’s uncertain future. Citizens faced poor economic conditions, skyrocketing unemployment, political instability, and profound social change. While downplaying more extreme goals, Adolf Hitler and the Nazi Party offered simple solutions to Germany’s problems, exploiting people’s fears, frustrations, and hopes to win broad support.

Explanation:

https://www.ushmm.org/learn/holocaust/path-to-nazi-genocide/chapter-1/aftermath-of-world-war-i-and-the-rise-of-nazism-1918-1933