1) Inaction 2) Noninterference 
• (n.) The state or habit of not intervening or interfering; as, the nonintervention of one state in the affairs of another. • (n.) The state or habit of not intervening or interfering; as, the nonintervention of one state in the affairs of another.
Non·in`ter·ven'tion noun The state or habit of not intervening or interfering; as, the nonintervention of one state in the affairs of another. 
[n] - a foreign policy of staying out of other countries` disputes
noninterference noun a foreign policy of staying out of other countries` disputes
abstention by a nation from interference in the affairs of other nations or in those of its own political subdivisions. · failure or refusal to intervene.