The conflict has pitted two big oil production nations against each other, Saudi Arabia and Iran.
Americans "need to understand just how important a threat Yemen can be," says one analyst.
A Saudi-led coalition - including the U.S - has launched airstrikes on Yemen as the country, ridden with extremist groups, edges closer to civil war. CNBC recaps the events leading up to that point.
With the conflict between Saudi Arabia and Yemen intensifying, Firas Abi Ali, head of Middle East analysis at IHS Country Risk, talks about what's taking place.
Military intervention by Saudi Arabia in the conflict in Yemen is ringing alarm bells around the Middle East and the world.
With the conflict between Yemen and Saudi Arabia increasing; CNBC's Hadley Gamble and NBC's Ali Arouzi reports on the effects on the countries involved and the markets.
Yemen has reportedly shut all its major sea ports due to the escalating conflict. CNBC's Hadley Gamble discusses further.
The UK has sent military support to the Falkland Islands, amid concerns that it faces an increased risk of an attack from Argentina, backed by Russia. CNBC's Ted Kemp reports.
The U.K. has sent extra military support to the Falkland Islands, amid concerns that it faces an increased risk of attack from Argentina.
Civil strife and terrorism in Yemen could pose a greater threat to the Gulf countries of the Middle East than tumbling oil prices, a major bank said.
A dispute between Ukraine's President and a billionaire governor has widened, confronting the government with a serious internal crisis.
President Vladimir Putin dismissed two senior officials on Monday in a surprise move that followed rumors of feuding at the heart of the Kremlin.
Robert Hormats, Kissinger Associates, shares his thoughts on geopolitical tensions in the Middle East.
Ukraine has never been so united in its desire to seek a European future based on transparency, Finance Minister Natalie Jaresko tells CNBC.
The battle to win hearts and minds in the conflict between Russia and the West has seen another salvo.
A year after Russia's takeover of Crimea sparked a wave of euphoria across the Black Sea peninsula, residents are suffering growing hardship.
Why are countries still paying back debt from the wars of the last century and who has to pay the most? CNBC takes a look at who owes what.
The U.S. and Europe have warned Russia of possible further sanctions if it fails to stick to a cease-fire. CNBC's Geoff Cutmore reports on the latest.
Joe Kaeser, president and chief executive officer of Siemens, has weighed in on geopolitical risks.
A Kremlin source has told NBC that Russian president, Vladimir Putin, will make an appearance today when he meets the president of Kyrgyzstan. CNBC's Geoff Cutmore reports.