In 1075 he undertook the task of revising the defence strategy of the country, and he undertook very successful negotiations with the Khitan tribes in the north who were threatening to invade.
In 1075 he undertook ang gawain ng pagbago ng diskarte ng depensa ng bansa, at siya undertook tunay matagumpay na negotiations sa Khitan tribes sa north na ang pagbabanta sa salakayin.