Étreux (French pronunciation: [etʁø]) is a commune in the Aisne department in Hauts-de-France in northern France.

Tasked with holding their ground under all circumstances, the 2nd Royal Munster Fusiliers, in their first action in France, achieved a military feat seldom paralleled in modern warfare.

Battalion of The Munsters halted the advance of the German Army for fourteen hours in the area of Oisny & Étreux during the retreat from Mons on 27 August, thus enabling the rest of the British Army to withdraw to a safe distance of twelve miles.

[4] They were outnumbered at odds of over 6 to 1, and when finally defeated, the survivors were congratulated on their supreme bravery by the German soldiers they had fought.

The officers and men of the Regiment who died in that battle are buried there alongside the carved monumental cross dedicated to their memory.