.png) |
|---|
| Pre-UNSC period |
| - Creation of the United Nations (1945) |
| - Jovian Moons Campaign (2160) |
| - Rain Forest Wars (2162) |
| - Mars Campaign (2163) |
| Interplanetary War (2164–2170) |
| Inner Colony Wars (after 2362) |
| Insurrection (2494–) |
| Human-Covenant War (2525–2553) |
| Post-Covenant War conflicts (2553–) |
