The Wikipedia article of the day for May 16, 2018 is Battle of Albuera.
The Battle of Albuera (16 May 1811) was fought during the Peninsular War. A mixed British, Spanish and Portuguese corps engaged elements of the French Armée du Midi (Army of the South) at the small Spanish village of La Albuera, about 20 kilometres (12 mi) south of the frontier fortress town of Badajoz, Spain. Since October 1810, Marshal Masséna’s French Army of Portugal had been tied down in an increasingly hopeless stand-off against Wellington’s Allied forces. Acting on Napoleon’s orders, in early 1811 Marshal Soult led a French expedition from Andalusia into Extremadura in a bid to draw Allied forces away from the battle lines and ease Masséna’s plight. In April 1811, following news of Masséna’s complete withdrawal from Portugal, Wellington sent the powerful Anglo-Portuguese Army commanded by Sir William Beresford to retake the border town. Meeting at Albuera, both sides suffered heavily, and the French finally withdrew on 18 May.