By then, it wouldn't be an invasion by foreign enemies but a civil war.
Although any perspicacious observer could see that Chu State wasn't aiding King An but rather sought to annex under the guise of support.
Yet, despite there being many astute individuals, compared to the vast population base of the world, they were extremely few.
Having King An up front, the low-level masses, even with high-level explanations, would inevitably harbor doubts when faced with King An's army.
"Why should we kill and be killed over your brothers' struggle for power? It's not like the country has been ruined and families destroyed."
Even if the country were in ruins, as long as their own families survived, the common folk at the bottom really wouldn't care much.
Hence with such a card at play, the morale of Liang's low-rank soldiers could be reduced by a good twenty or thirty percent out of thin air.