A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
A player, 2 September 2007
If I discard a Kumade When using Crossroads fortress' reaction, Do I draw 2 cards?
Kumade: Reaction: After this card enters the discard pile during a battle, remove it from the game: Draw a card
Crossroads Fortress: Reaction:After you assign an attacking unit, discard a card: Draw a card
Zen Faulkes (rules official), 2 September 2007
If I discard a Kumade When using Crossroads fortress' reaction, Do I draw 2 cards?
No, because assignment is not "during a battle." (Fixed.)