What was the purpose of the washington naval disarmament conference and the kellogg-briand pact? what prompted them? was the purpose accomplished?

At the end of WW1 the US, Great Britain, and Japan all started large scale programs of capital ship construction. This rapid construction led to a naval arms race. The Washington Naval Conference was held to limit warship construction on all sides.The Kellogg-Briand pact was a bilateral treaty to outlaw war caused by expansionist aggression.

Hope I helped. :)  

d. she conquered the black sea coast and parts of poland.

the tariff was created to protect industry in the northern part of the united states. industries in the north were being driven out of business by imported goods that were priced at a low rate. the goal was to protect these industries   by taxing the goods.