However , neither party actually intended to attack Northern Wei 's territory north of the Yellow River first , waiting for the other to act .
Northern Wei 's Emperor Taiwu took advantage of this and decided to try to destroy Helian Ding first .
However , neither party actually intended to attack Northern Wei 's territory north of the Yellow River first , waiting for the other to act , and Northern Wei 's Emperor Taiwu took advantage of this and decided to try to destroy Helian Ding first .