ORIGINAL: Cap Mandrake
Nope..it has to come from the outside.
Hmmm...that limits your options considerably. Too bad. Could you move 32ID out and then move 'em back in, or is all movement (other than the innertube option) off for them?
March overland from Exmouth or Meekathara
Nope. They'll be eating rice in a Sapporo POW camp by the time that March makes it in to PH.
Paradrop or beach landing in an adjacent hex and march in (I dont think we have a house rule against this)
Maybe. I'd drop on the trail, so's to expedite your march in in that case.
Capture Corunna and march North
My second choice, as this would take more time to march up the trail.
Stand to the last man in place
How very iron-man dictatorish of you. Idi Amin (WWIIc) would be proud.