This is the 15590th most frequent Korean word.
보급선을
"Supply line."
In this sentence, '보급선 (supply lines)' refers to logistics and supply chains crucial for the operation of military forces.
군대는 항상 보급선을 유지해야 한다.
The army must always maintain the supply lines.
Here, '보급선' is used to describe the infrastructure or routes through which supplies are transported.
그 지역의 보급선이 차단되었다.
The supply lines in that area have been cut off.
This usage highlights '보급선' as an essential part of planning and strategy in logistical operations.