Song originally from the Basque Country closely linked to the Basque nationalist movement. "Eusko Gudariak" means basque soldier
Lyrics
We are the Basque Soldiers, To free the Basque Country, We have ready our blood, To give it for it, An irrintzi has been heard, On the top of the mountain, Let's go, all the soldiers, Under the Basque flag, Athletic, (claps), Athletic, (claps)...