What was the purpose for Gandhi's fast?

Gandhi announced he was beginning a “fast unto death” in order to protest British support of a new Indian constitution, which gave the country's lowest classes known as “untouchables”

Explanation:

in order to protest British support of a new Indian constitution, which gave the country's lowest classes known as “untouchables”—their own separate political representation for a period of 70 years. Gandhi's purpose was to fight for the freedom of India from Great Britain using non-violence. He also wanted to advance the idea of satyagraha, or passive resistance, to help oppressed people.

Explanation:

the united states broke it's neutrality was the constant german sinking of trading vessels resulting in the loss of lives, one example would be the lusitania.