Taichung Port, near the Tatu Mountains, is part of the restricted Taichung Port Special District, and the summit of those mountains is one of the best anti-aircraft defense points in Taiwan; even today you can still see several pillboxes at the summit pointed out over Taichung Port, ready to defend it should the need arise.
大肚山鄰近台中港，部份地方被劃入台中港特定區的保護區，而大肚山頂則是戰略上反空降最好的地點，至今在大肚台地上，仍可見許多碉堡對準台中港，做為敵人攻打時的反制據點。