This is Our Land is a song included in the Halo 3: Original Soundtrack, and includes the tracks This Is Our Land, To Turn a Tide, and Innocents of Voi. It plays at the beginning of the level The Storm.
It runs for 5:25 minutes, and is a remake of the Halo: Combat Evolved track Brothers in Arms. The part from 0:58 to 1:28 is a remake of the middle part of "Broken Gates" from the Mombasa Suite.