East Germany built the Berlin Wall to put a permanent stop for the
people to go or get access to the West. This happened during the Cold War when
West Berlin was considered a getaway place for people who want to escape the
rule of communism and flee into democracy that it supported.
They both are big cities with a lot of big businesses
Answer:
Nationalism led to major conflicts following World War I, especially when: in 1915
Tigris-Euphrates and Nile River valleys,
Indus valley, and later in China's Huang River Valley
