Those communities were called “hoovervilles.”

The shanty towns called Hoovervilles was named after the president of that time Herbert hoover because many blamed him for the great depression and the name just stuck

Even before the war began in 1914, many countries in Europe had been expanding their armies and navies. Many leaders pushed for the steady build-up of their country's armed forces as a show of power. Most believed the best way to avoid trouble was to show enough military strength to discourage any attack.