Forge Fast Expand is the standard defensive PvZ opening. Build a forge before your first gateway, then place photon cannons at your natural expansion to defend against early zergling and hydralisk pressure. The nexus goes down at the natural behind cannon protection, giving you a safe two-base economy.

The key execution detail is cannon placement — position them to cover both the mineral line and the ramp or choke leading to your natural. Build the gateway after the nexus starts, then choose your tech path: stargate for corsairs, or cybernetics core into robotics. Your first gateway units come later than other builds, so the cannons must hold.

FFE works on maps with easily walled or defended natural expansions — it is the default PvZ on most standard maps. It is strongest against Zerg players who also play economically with three hatch openings. Weak on maps with wide-open naturals that are hard to cannon effectively, and against very early pool builds like 4 pool or 5 pool that arrive before the first cannon completes.