The German U-boats blocked British Isle and attacked merchant ships affecting the trading business of US with British, but at some stage the U-boats started to attack ships taking the lives of unarmed passengers, as with the Lusitania ship, which 120 American died. The Germans were asked to stop the attacks but they did not and many US ships sank, shedding off US citizens lives. The submarine warfare enraged the US neutrality which then turned against the German and declared war on March 1 in 1917.
G.I. Bill. President Roosevelt passed this act to help returning soldiers from WW2 get situated in real life. Such as tuition,loans, cheap mortgages and more. You’re welcome. The answer is G.I. Bill
The document that established the separation of the colonies and Britain's highlighted natural rights all men held in listed grievances against the king was the
DECLARATION OF INDEPENDENCE.