We can still build warriors, but cant change the builds unless we pillage the iron, which is an option. However, we cant really whip the warriors, since it will be better to whip archers/spears. Do we want a round of archer/spear whipping before engaging on the rest of the culture? This will delay culture for a few turns (perhaps endangering us moreso from marines in the endgame), but will provide defense now. We can have 50 units up and running in 2 turns.
Our other option is 1 turn archers from Sugar Mountain. This also delays culture a bit.