solar storm of August 1972
... that a record-breaking solar storm of August 1972 is thought to have caused the spontaneous detonation of numerous U.S. Navy sea mines in North Vietnam?
... that a record-breaking <b id="mwBMo"><a class="mw-redirect" href="./Solar_storm_of_August_1972" id="mwBMs" rel="mw:WikiLink" title="Solar storm of August 1972">solar storm of August 1972</a></b> is thought to have caused the spontaneous detonation of numerous U.S. Navy <a href="./Operation_Pocket_Money" id="mwBMw" rel="mw:WikiLink" title="Operation Pocket Money">sea mines</a> in North Vietnam?