To reinforce a fight, does a unit have to start the turn in an adjacent region, or can it arrive there in time for a fight in a neighbouring region and join it? (So, corps A marches into region X to start a fight on day D. If corps B marches on the same turn from region Z to region Y, adjacent to region X, and arrives there by day D, can it join a fight in region X?)
And another question: Do the attacking corps and the reinforcing corps have to be in adjacent regions, or will a corps reinforce an attack if it is adjacent to the region that is being attacked, but not to the region where the attack originated?
Thanks.