Unit speed is the speed at which your Units move toward their military destination, be it Battleground, Settlement, Beacon, or another player's Castle. Unit speed can be increased in the following ways:
- with the help of the bonus granted by an active Paragon Status;
- with the help of Travel Boosts. You can get these in the Items section of the Black Market, in the Boosts tab;
- by upgrading the corresponding Skills at your Obelisk of Power.
Keep in mind that the speed of a military engagement is determined by the speed of the slowest Units sent as part of it.