noun
38th parallel; 38th parallel north (Korean DMZ)
Specifically refers to the line of latitude that divides North and South Korea, established after WWII.
朝鮮戦争は三十八度線を挟んで激しく戦われた。
The Korean War was fiercely fought across the 38th parallel.
休戦ライン
The armistice line roughly follows the 38th parallel.