Can you cut support for an attack into your own province?

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Can you cut support for an attack into your own province?

Postby idea2go » 04 Sep 2018, 03:39

I had a situation similar to this:

Germany: A Pic-Bel, A Hol (s) Pic-Bel
France: A Bel-Hol, A Ruh (s) A Bel-Hol, A Bur-Bel

I was surprised that Picardy did not succeed into Belgium. Holland’s support seems to have been cut, but I didn’t think a piece in Bel can cut the support of an attack on itself.

Was this the correct resolution, that Bel-Hol succeeds, but Pic-Bel fails?
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Re: Can you cut support for an attack into your own province

Postby condude1 » 04 Sep 2018, 03:46

That resolution is correct. You can't cut support into your own province UNLESS you make the supporting unit retreat. A unit can never support and retreat in the same turn.
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Re: Can you cut support for an attack into your own province

Postby asudevil » 04 Sep 2018, 14:23

Hol can't cut the support on his own unit. That has nothing really to do with BEL.

Then BEL was a 1v1 bounce...since HOL was cut
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Re: Can you cut support for an attack into your own province

Postby NJLonghorn » 04 Sep 2018, 16:22

Condude1's explanation is correct. Here are the two relevant rules, from page 12 of the The Rules of Diplomacy, 2008 edition:

• Support is cut if the unit giving support is attacked from
any province except the one where support is being
given. The support is cut whether this attack on the
supporting unit succeeds or not.

• Support is cut if the unit giving support is dislodged. If a
unit ordered to support another unit is dislodged by an
attack from any province (including the province into which
it’s giving support) then the support is cut and the unit that
was to receive support doesn’t receive it.

Look in particular at Diagrams 16 and 17 on the same page, which illustrate these two rules. Your situation is parallel to Diagram 17.
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