<a href="https://en.wikipedia.org/wiki/World_War_I" id="mwsg" rel="mw:WikiLink" title="World War I">World War I</a>: <a href="https://en.wikipedia.org/wiki/Battle_of_Messines_(1917)" id="mwsw" rel="mw:WikiLink" title="Battle of Messines (1917)">Battle of Messines</a>: Allied soldiers detonate <a href="https://en.wikipedia.org/wiki/Mines_in_the_Battle_of_Messines_(1917)" id="mwtA" rel="mw:WikiLink" title="Mines in the Battle of Messines (1917)">a series of mines</a> underneath German trenches at Messines Ridge, killing 10,000 German troops.