You may move an army up to two adjacent domains. A march is moving by land any number of Power Tokens you control (your house’s and/or an allied house’s) from one domain into an adjacent domain. All of the moving units are called an “army.”
“Adjacent” requires moving over a border. Corner-to-corner domains, such as Ashemark and The Eyrie, are not adjacent. However, water borders between domains are considered adjacent: Pyke is adjacent to Riverrun and Ashemark.
When marching units:
• You may move up to two adjacent domains (which have white borders). For instance, you may march from Castle Black, through Last Hearth, to Hornwood.
• You may move into domains you control, and pick up and/or drop off units from your army (including allied tokens) anywhere along your marching path, moving from domain to domain. For instance starting in Castle Black, dropping off a token and picking up an Arryn from Last Hearth, before moving to Hornwood.
• You may march from one Map Card to another. For instance, moving from Hornwood to Winterfell.
• You cannot move two separate armies from two different home domains with a single March action. All units that move must either be part of the initial army or be picked up along that initial army’s path.
• You cannot move through domains with another player’s Power Tokens or an unallied house’s Power Tokens (unless a power lets you do so). Marching into a hostile domain immediately results in a battle (see Battling).
• If you end your march in an unoccupied Castle Domain, you take control and add the Castle to the rightmost open space on your Gold Track (see Castles).
• You cannot end your march in King’s Landing unless you currently control 3 Castles (see Sitting on the Iron Throne). However, you may move through King’s Landing if it is not currently occupied by another player or unallied house.
• The final result of a march cannot exceed the Domain Unit Limit (see previous Domain Unit Limit).