Idk about specifically as support to the land based part of a siege, but breaking through blockades was a pretty common occurrence. And sometimes it was done specifically to attack the blockading navy and then return to the besieged port without escaping, usually to reduce the effectiveness of the blockade so that incoming support or supplies had a better chance of making it into port
Sounds like it would possibly happen in the context of breaking through a blockade as possibly a distraction elsewhere on the line
Would the term "sortie" still apply? Maybe skirmish would also be correct.
All it is, is a short duration attack to probe or disrupt a seiging force, right?
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