Finlandia

In 1899, a Finnish composer, Jean Sibelius wrote Finlandia: A Tonal Poem for Orchestra as a salute to his country. The first few minutes of this music is turbulent and disruptive representing the country's struggle for peace. Eventually, the music becomes peaceful and joyous with just as much energy as the beginning of the music. This composition was later reworked into a hymn and had lyrics written for it, and is now one of the most important patriotic songs to Finland.

Although Sibelius was a composer of the modern era, he preferred to compose his music in the older romantic style. I generally just love music of the romantic era, but I think that this style also fits well as a patriotic song.

Because I like both recordings:

Here is a very energetic and bright recording of the Evergreen Symphony Orchestra led by Lim Kek-tjiang.

This recording of the Finnish Radio Symphony Orchestra led by Sakari Oramo starts of a little darker, but has an equally fantastic finish.