A foreign policy of staying out of other countries' disputes WordNet 3.0 & Open English WordNet

Non-interventionism or non-intervention is a political philosophy or national foreign policy doctrine that opposes interference in the domestic politics and affairs of other countries but, in contrast to isolationism, is not necessarily opposed to international commitments in general. Wikipedia

Foreign policy that holds that political rulers should avoid interfering in the affairs of foreign nations relations but still retain diplomacy and trade, while avoiding wars unless related to direct self-defense. Wikipedia Disambiguation

The policy of a state of not intervening in the domestic affairs of another. Wiktionary

Policy of a state. Wiktionary (translation)

The policy of a state or other actor of not interfering in the domestic policies of another. Wiktionary

Policy of not interfering in the domestic policies of another. Wiktionary (translation)