By the 16th century and again in the 19th century, north Yemen was part of the Ottoman Empire, and in some periods its Imams exerted control over south Yemen.

16世纪和19世纪北也门成为奥托曼帝国的一部分；在一些时期，伊玛目控制了南也门。

youdao

After the union between north and south Yemen in 1990 both the northern rial and the southern dinar remained legal tender.

1990年南北也门合并后，北方的里尔和南方的第纳尔都是合法货币。

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Saudi Arabia has also been concerned by what it sees as Iranian meddling in Yemen in support of the rebellion by the Houthis (a Shiite minority in the north).

阿特阿拉伯关注并认为伊朗插手也门意在支持一个北部由少数什叶派成员组成的叫Houthis的反叛组织。

youdao

U.N.Emergency Relief Coordinator John Holmes visited the conflict zone,Friday, during a three-day visit to Yemen, inspecting one of five refugee camps in the north of the country.

VOA: standard.2009.10.11

The dangerous game the US is playing in the north of Yemen could well draw in the Iranians because this is Shiites being exterminated, and it gets covered a lot on Iranian state television.

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But ever since North and South Yemen united in 1990, the central government in Sanaa has been slowly waking up to the island's potential.

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So there are few recent examples of mergers between nation-states (North and South Yemen and the two Germanies are rare exceptions) but many of secession.

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