IIRC, though Tithonus made that deal with Shep for bio/chem weapons, I do believe it was only Zor who said they were used. Did anyone confirm that they were, in fact, used, before the counter-invasion of Syndromia?
Which, I'll note, Zor managed to accomplish in impressive time.
I am pleased to report that the initial hostile actions of TithonousSyndrome against the Sovereign Kingdom of Zoria have been repulsed by his Majesty's Royal Zorian Navy and Royal Zorian Air Force and are enforcing an imediate blocade alongside Fungal Axis, FYTO and LUN forces. I would like to discuss a plan for handling this agressive power with the international community.
Here he says it was repulsed. Much relief was had by all. Later, he makes the following claim:
On behalf of the fine people of the Kingdom of Zoria, i am greatful for this aid, several villiages were attacked with gas and incindiary missiles before we could respond.
Naturally, everybody is alarmed. However, everybody decides to wait until the allegations can be confirmed. Nobody, however, actually does this. And then, with no further aggression reported by Syndromia (or even claimed) and no confimation given on the use of WMDs:
I, King Zor-I of the Kingdom of Zoria have just recieved word from Legate Adria Hitachi of the First Legion of the RZMC. Her forces have sucsessfully landed on the main island of TithonousSyndrome's island chain, home to the capital city and main industrial section twenty kilometers from the outskirts of his capital and have established a beach-head with an additional ten thousand soldiers landing by the end of the day, despite gas mortar attack by a few resisting soldiers early on in the invasion. This island contians the capital and main industrial city, Should it island fall, the rest of his Island chain will succum soon after. As for his Navy, the RZAF took care of most of their fleet during their attack on the homeland.
And then, less than a day (game-time) later:
I have just received word from Legate Hitachi, her forces have managed to take the Palace of TithonousSyndrome and have forced him into diplomatic talks. The war is over!
The whole process, from when he first makes the claims of gas attack, through to his declared victory, took about a day and a half in game-time. Even allowing that we hadn't really established this firmly yet, the chain of events was alarmingly fast. And finally, as I recall, the withdrawl essentially left Syndromia in Zoria's hands, if I am not mistaken.
OOC aside, from an in-universe perspective, can you see how alarming this event would have been? Our signle joint-MESS naval exercise pales in comparison.
EDIT: Further, the reminder that Shepnukistan provided the gas in the first place is even more alarming.
EDIT2: In-universe, I'll be making a newspaper editorial concerning these events and their relation to the larger international stage. In fairness I'll probably have the timeframe expanded to about a month or so, since we hadn't established a game speed by then.