In August 1914 a force of more than 55,000 German soldiers descended on the Belgian city of Liege. Protected by a belt of steel and concrete forts, at Fort de Loncin the garrison of 550 men came under murderous German artillery fire resulting in a huge explosion that turned this site into a national cemetery and memorial, and came to stand for Belgian defiance in that first year of the war.
The website of the fort is here: Fort de Loncin.