The insufficiency in which the 1907 Hague Peace Conference was able to deal with the problem of placing some international controls on mine warfare at sea is amply demonstrated in the mining campaigns of both World Wars.
Levie, Howard S.
"Mine Warfare and International Law,"
Naval War College Review: Vol. 25
, Article 5.
Available at: https://digital-commons.usnwc.edu/nwc-review/vol25/iss4/5