Why was the war bonds important in world war 1?

Answer 1

War bonds were used to help finance both World Wars, not just the first.

By selling bonds to average citizens, the country was able to borrow that money to pay for the goods and services needed to keep the means of production rolling.

The alternative was to borrow money from big banks, many of which were also connected to the countries we were fighting. Bonds let the government finance the costs of the war while being indebted to the citizens of the country, which had the added benefit of making everyone feel more a part of the war effort, unlike what happened in Korea, Vietnam, Iraq and, still, in Afghanistan.