Canonical off-screen missions

[fignewton]

In anticipation of the next Alphabet Soup (although no commitment is involved right now), we are compiling a list of canonical off-screen missions - that is, missions that are referenced or implied in dialogue or action during canon, but are never seen. The classic example of this is the unseen mission to P3X-595 where Sam "drank that stuff that made you take off..."

If you'd like to see what we've come up so far, or make a suggestion yourself, come take a look:

What are the canon-implied SG-1 missions?