I don’t like calling a rule question a conflicting rule, so instead I’m going to ask which rule to follow in the following situation. This question revolves around the following two rules:
retreat rule - condition B “Move all attacking land and sea units in that combat that are on the battle strip to a single adjacent friendly
space from which at least 1 of the attacking land or sea units moved. In the case of sea units, that space must have been friendly at the start of the turn. All such units must retreat together to the same territory or sea zone, regardless of where they came from.” (Europe pg 20)
and the Canal rule, “If your side (but not necessarily your power) controlled a canal or narrow strait at the start of your turn, you may move sea units through it” + “Exception: Submarines of any power may pass through the Strait of Gibraltar regardless of which power controls it.” (Europe pg 9)
German fleet attacks Allied fleet based in 91. They bring a surface fleet from West Germany, plus a sub fleet from the Med. z92 is friendly, eliminating that requirement of Retreat.
Does the retreat rule, “All such units must retreat together to the same territory or sea zone, regardless of where they came from” override the Canal rule, “If your side … controlled a canal or narrow strait at the start of your turn, you may move sea units through it” and allow a power to slingshot through Gibraltar?