6.7  DISOWN  The DISOWN action is used to disown an area and all the armies in it. Both the area and everything in it become neutral (sometimes done in order to cut army maintenance costs, or to build neutral buffer states). There is no cost in BPs.
Format [ "DISOWN" ] [ WHERE ] [ NOT USED ] [ NOT USED ]

6.8  RAZE  The RAZE action is used to remove forts in an area owned by your own kingdom. The cost is one BP per fortification level. RAZE actions may not be made in cities under blockade (not that you'd want to!).
Format [ "RAZE" ] [ WHERE ] [ NOT USED ] [ NUMBER OF LEVELS ]

6.9  POP & ARM  The POP and ARM actions are allowed for Gaelic kingdoms only. They convert one army to one population, or one population to one army (respectively) in any area you own. There is no cost in BPs. You may not grow in areas you have "popped" the same turn but you may "pop" more than once,
Format [ "POP" ] [ WHERE ] [ NOT USED ] [ NOT USED ]
Format [ "ARM" ] [ WHERE ] [ NOT USED ] [ NOT USED ]

6.10  HOUSE  The HOUSE action is used to transfer troops from your army reserve to your household. There is no cost in BPs. The "all" and "all but" formats both work. You are not allowed to move troops from your reserve to your household the same turn after a disband action, and may not move troops into your household when your household is in a blockaded city. See 10.7 for the KING action, which you can use to move your household around the map.
Format [ "HOUSE" ] [ NOT USED ] [ NOT USED ] [ NUMBER ]
Note: There is no action to move troops out of your household (either back to the reserve or to the map). Household troops get placed on the map when the household is attacked (see 3.14).

6.11  BORROW  The BORROW action allows you to say which other kingdom you're willing to borrow troops from (see 3.15). The armies are only transferred if they subsequently do a LOAN action (you can't use them until the following turn anyway). There is no cost in BPs. You can borrow troops from only one kingdom at a time.
Format [ "BORROW" ] [ NOT USED ] [ WHICH KINGDOM ] [ NOT USED ]

6.12  LOAN  The LOAN action sends troops from your reserve to the reserve of another kingdom (provided they previously made a BORROW action to say you're allowed to). You can't send loan troops to someone who hasn't made an action to say they want them. Loaned troops can't be used until the following turn. You can only loan troops to one kingdom at a time (see 3.15).
Format [ "LOAN" ] [ NOT USED ] [ WHICH KINGDOM ] [ NUMBER OF ARMIES ]

6.13  RETURN  The RETURN action sends borrowed troops (from your reserve) back to the kingdom they came from. You can do this at any time, but you can't return loan troops to a non-player kingdom. Troops that are returned can't be used until the following turn.
Format [ "RETURN" ] [ NOT USED ] [ NOT USED ] [ NUMBER OF ARMIES ]
Note: The computer already knows who you borrowed the troops from, so you don't need to say WHO on RETURN actions. The same applies for RECALL actions: the computer remembers who you loaned them to.

6.14  RECALL  The RECALL action takes loaned troops back from the reserve of the kingdom they were loaned to (you can do this at any time). Troops that are recalled can't be used until the following turn.
Format [ "RECALL" ] [ NOT USED ] [ NOT USED ] [ NUMBER OF ARMIES ]
Note: The "proper" process is the kingdom that wants to borrow troops makes a BORROW action. The other kingdom can then make a LOAN action (later in the same turn, or in another turn). Either side can end the loan, even at an inconvenient moment, Normally you'd expect them to be sent back with a RETURN action, back if they aren't returned when you want them, you can always make a grab for them with a RECALL action any time the other guy has troops hanging around in reserve.