The enemy below

Use this Stratagem when you set up a JORMUN-
GANDR INFANTRY unit during deployment.
It is set up within tunnels bored before battle.
Whenever you set up a unit of Raveners, a
Mawloc, Trygon or a Trygon Prime at the end
of your Movement phase (a burrowing unit), you
can also set up any number of units you set up
within the tunnels. Set up the unit wholly within
3" of the burrowing unit and more than 9" from
any enemy units. Any models you cannot set up
in this way when you do so are destro