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Armed Yemeni militiamen loyal to President Abedrabbo Mansour Hadi, also known as the Popular Resistance Committees, sit on tanks, one flying the separatist Southern Movement flag, outside the Yemeni special forces command base in the southern city of Aden on March 19, 2015.
Armed Yemeni militiamen loyal to President Abedrabbo Mansour Hadi, also known as the Popular Resistance Committees, sit on tanks, one flying the separatist Southern Movement flag, outside the Yemeni special forces command base in the southern city of Aden on March 19, 2015.

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    Yemen: Why it matters

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Yemen: Why it matters

Yemen has a long history of instability and extremist activity, but it's not until recently that it has become a priority to leaders across the region. Tom Foreman explains.

Yemen: Why it matters

Yemen has a long history of instability and extremist activity, but it's not until recently that it has become a priority to leaders across the region. Tom Foreman explains.