"The alliance made the River Lord bring heavy rains and cause floods, inundating Longxiang County, aiming to widen the Tongtian River channel. The water level in Hexi has risen, but it's still not deep enough for the Great Jin's troop carriers to navigate. Even if the Great Jin landed in Hexi, they would either have to spend time dealing with the floodwaters or build a lot of small boats to cross the river;
In contrast, the Hedong Alliance only needs to transport troops to Longxiang Ferry using large boats. Even without smaller boats, soldiers can wade through the water for over ten li to land and resist the Great Jin army.
