Mulled US nuclear posture shift would lack credibility

With less than six months left in office, President Barack Obama is considering changes in US nuclear weapons policy

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Yemen's tribes will gain power from Huthi conflict

All sides are seeking to make alliances with the country's powerful tribal networks

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A more robust peacekeeping force will rely on donors to foot the bill

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A consequence for the United Kingdom of the intervention in Iraq may be a widespread distrust of the political class

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The end of hostilities will bring the Americas' longest-running armed conflict to a close.

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The announcement of a bilateral ceasefire this week could mark a de facto end to half a century of armed conflict

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Congressmen argue the 1992 confidence-building arrangement is placing US national security in jeopardy

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Promised modest deployments are reassurance for NATO's eastern members and a statement of intent for Moscow

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Pakistan's bid for membership has opened up a diplomatic rift in a key nuclear non-proliferation institution

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After a long delay, the first S-300 air defence missiles arrive

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