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, 25 August 2010
First, the cards:
Junghar Encampment Once per battle, if you control any units at an adjacent battlefield, after you announce a Battle action at the current battlefield, you may take and resolve it as if the Defender's army had at least one unit. (This does not create any units for costs or targeting.)
Final Duty Battle: If your current army has lower total Force than the current enemy army: Ranged 6 Attack.
The situation: I'm the Junghar Encampment player and get attacked. The opponent assigns his units on province A and I assign 1 unit on province B (adjacent to A). We start resolving battle A. Can I play Final Duty ? Am I considered to have an "army with lower total force" ?
Zen Faulkes (rules official), 25 August 2010
Junghar Encampment: Am I considered to have an "army with lower total force" ?
Yes.
http://rules.l5r.com/CE_Card_features#Absent_stats: "If something in the game needs to know the value of an absent stat, the value is zero.
"If a side at a battlefield has no units, its total army Force is treated as an absent stat."