 Fearful of Song's powerful military, Meng Chang wanted to establish diplomatic relations with them, but Wang Zhaoyuan adamantly opposed.Because he enjoyed reading about military theories, Wang Zhaoyuan often likened himself to Zhuge Liang, a brilliant 3rd-century strategist who also served a "Shu" dynasty (the Shu Han).Wang Zhaoyuan reasoned that because of several strategic natural barriers, the Later Shu was impenetrable to foreign invasion.