수교했으며

In a sentence

• 한국과 미국은 1882년에 수교했으며, 이는 역사적인 사건으로 알려져 있습니다.

  Korea and the United States established diplomatic relations in 1882, which is known as a historic event.

  In this sentence, '수교했으며' is used to indicate an action ('established diplomatic relations') that has significance in historical context and is followed by information about its implications.

• 수교했으며 이를 통해 두 나라 간의 경제 교류가 활성화되었습니다.

  They established diplomatic relations, and through this, economic exchanges between the two countries were revitalized.

  Here, '수교했으며' functions as a connector, bridging the act of establishing diplomatic relations with its result, the revitalization of exchanges.

• 그 당시 일본과도 수교했으며, 이는 동아시아 외교에 큰 변화를 가져왔습니다.

  At that time, diplomatic relations were also established with Japan, bringing significant changes to East Asian diplomacy.

  In this sentence, '수교했으며' refers to the establishment of diplomatic relations and goes on to describe its broader diplomatic effects.