Simon Marks

NATO's secretary general has called for calm and de-escalation after Turkish jet fighters shot down a Russian military jet yesterday. Turkey and its NATO allies say the Sukhoi 24 bomber trespassed on… Audio

Now to Washington where Barack Obama has welcomed the French president Francois Hollande to Washington DC with a promise the United States will stand united with France to defeat terrorism. Audio

The US State Department has issued a rare worldwide travel alert warning Americans of the risks of travelling because of what it describes as increased terrorist threats from militant groups. Audio

France's President Francois Hollande is expected to seek a bigger United States effort against Islamic State, when he visits Washington this week. Audio

The Paris terror attacks are forcing US presidential candidates to focus on national security, and fast. Audio

More than half the America's state governors say they will refuse to let Syrian refugees into their states. Audio

The terror attacks in Paris have increased the pressure on US President Barak Obama over his increasingly untenable policy on Syria. Audio

Reports in the Washington say the Pentagon believes that US forces may have killed the British-accented ISIS executioner known as Jihadi John. Audio

The US president Barack Obama is under pressure over his pledge two years ago not to put his country's troops on the ground in Syria. Audio

The United States navy has sent a warship within 12 nautical miles of two artificial islands built by China in the South China Sea, in a challenge to Beijing's territorial claims in the area. Audio

The President of Mexico, Enrique Peñya Nieto is warning that the worst may be yet to come, as the country braces itself for floods and mudslides in the wake of Hurricane Patricia. Up to 50,000 people… Audio

The former American Secretary of State, Hillary Clinton, has shrugged off intense criticism of her handling of the deadly 2012 attack in Libya that threatens to derail her attempt to become the next… Audio

The US Vice President, Joe Biden, has dashed the hopes of many Democrats and announced that he will not run in the country's 2016 election. Washington Correspondent Simon Marks reports. Audio

The US president Barack Obama has announced US forces will remain in Afghanistan at their current levels throughout much of 2016. Our Washington, D.C. correspondent is Simon Marks. Audio

The Governor of Oklahoma has halted the execution of a death row inmate at the last minute, after realising the state had taken delivery of the wrong kind of drugs for his killing. Audio

Russia claim to be targeting ISIS although the strikes have hit provinces including Homs and Hama which the French and the US say are dominated by rebels fighting the regime of Bashar al Assad. Audio

One day after the Russian President, Vladimir Putin, accused the US President of failing to stop Islamic State's spread, Mr Obama has called on world leaders to launch a long-term counter-terrorism… Audio

The Chinese president, Xi Jinping, is insisting that foreign companies are welcome in his country as China continues to open up its economy. Simon Marks is our US correspondent. Audio

The international deal to roll back Iran's nuclear programme will now go ahead, after it gained enough support in the United States' senate just hours ago. Audio

America is in shock after two television journalists were executed during a live interview on breakfast TV. Audio