In the Babel rules, under the section "Playing with the other expansions", it says (English PDF, page 7):
If you play with the Tower of Babel expansion, the effect of tiles 19 and 22 also apply to Conflict tokens from the Great Projects.
Tile 19 modifies the "taking of military Victory tokens".
Tile 22 modifies the "taking of military Defeat tokens".
While the Great Projects expansion has a reward token where you get Victory tokens (so the effect of tile 19 is clear), there is no reward nor penality token where you get Defeat tokens.
So when would the effect of tile 22 "apply to Conflict tokens from the Great Projects"?