Last week we heard one of my favorite recordings of Tchaikovsky's "1812 Overture". To continue the martial theme, here's Beethoven's "Wellington's Victory", Op. 91. He wrote it to commemorate the victory of the Marquess (later Duke) of Wellington over Joseph Bonaparte's forces at the Battle of Vitoria in 1813.
The second version is with a military brass band and re-enactors. It features the combined bands of the Household Division at the Horse Guards Parade in 2013, Beating Retreat in the presence of Her Majesty the Queen. The recording isn't visually pleasing (the perspective is distorted), but you can get some idea of how the piece was often performed during the early years of the 19th Century as a crowd-pleaser and military celebration of victory over Napoleon Bonaparte.
Not as well-known in modern times as Tchaikovsky's war memorial piece, but perhaps even more popular in its day.