George Washington was the one who introduced the foreign policy of neutrality as stated in President Washington Farewell Address.
Washington
The Proclamation of Neutrality address was an address by George Washington in 1973. It declared that the nation would have a neutral stance in regards to the conflict between France and Great Britain.
Washington's farewell address
A simple Mr President should be OK.
George Washington
The web address of the President Lincoln'S Cottage is: http://www.lincolncottage.org
If he should take his hippo or his hooker home
Its was originally writen to be "unity at home, neutrality abroad", but it can be made very clear that the answer to your question i believe is to mean a movement of not participating in a kind of act where there is dispute/war.
george washington
The address of the President Lincoln'S Cottage is: 140 Rock Crk, Washington, DC 20011
Washington's farewell address (1796)