“海外贸易”，用英文怎么表达

“海外贸易”，用英文怎么表达？

Overseas trade

(海外贸易)

例句：

1：When did overseas trade begin？

海外贸易是从什么时候开始的？

2：What are the benefits of overseas trade？

海外贸易有哪些好处？