战争结束后，该国被迫将北部领土割让给战胜国。

After the war, the country was forced to make a cession of its northern territories to the victor.

cession 是名词，来自动词 cede（割让、放弃）。cede 源自拉丁语 cedere，意思是"让步、放弃"。cession 指正式将领土或权利让给他国的行为，即"割让"。