The wording of articles 2(4) and 51 of the United Nations Charter has led many to suggest that the Charter prohibits any type of forcible self-help except self-defense.
Lillich, Richard B.
"Forcible Self-Help Under International Law,"
Naval War College Review: Vol. 23
, Article 9.
Available at: http://digital-commons.usnwc.edu/nwc-review/vol23/iss2/9