BBC News with Marion Marshall.

The head of the US armed forces General Martin Dempsey has said the air campaign has demaged the Islamic State group but he has warned that the air power alone will not be enough to defeat the militants.He told journalists that the political solution and ground campaign against the militants would both be needed in Iraq and Syria.Tom Esslemont reports from Washington.

Speaking at the Pentagon General Dempsey said air strikes in Syria in recent days were starting to have an effect.The US backed by the air forces of two Arab states has targeted oil refineries set to have been a vital source of revenue for Islamic State Jihadists. But the General repeated that it would take more than air power to recapture lost territory.In Iraq the US would continue to work with the Iraqis and Kurds he said.In Syria it would take a large ground force of 12 to 15 thousand fighters.

Britain is to join the United States and coalition of Western and Arab nations and take part in air strikes against the militant group Islamic State in Iraq. Denmark and Belgium also promised to join the US led mission.None of the European countries will be involved in the attacks on Islamic State in Syria.Here's Mike Sergeant.

British air strikes against IS in Iraq are likely to begin this weekend but Downing Street has indicated that any action will be more about patience and persistence than shore in door that was necessarily be / every day.MPs who backed the government with a huge majority must now wait to see the consequences of their decision.The ballots of votes in favor to those against might be impression of a parliament confident and united in response to the Islamic State threat but the great unease was expressed in the debate about the future.

The International Committee of the Red Cross has warned the air strikes in Iraq and Syria are adding to already dire situation in both countries.The ICRC called on all parties in the conflict to refrain from attacking civilians and civilian targets.Imogen Foulkes reports from Geneva.

The ICRC is to go on dinner for Geneva conventions.Its statement spells out to all those involved in the conflict that means Islamic State as well as the countries launching air strikes what the roles of war are.Civilians and civilian objects such as schools,homes and hospitals must not be attacked.Aid workers must be protected and indeed helped to deliver relief to the sick，the wounded and the prisoners of war.

Thousands of Muslims have gathered in towns and cities across France to condemn the killing of a French tourist by Jihadists in Algeria. Militants linked to Islamic State released a video on Wednesday showing Herve Gourdel being beheaded.The director of the grand Mosque in Paris Dalil Boubakeur,France's senior Muslim cleric told worshipers that had been a cowardly murder.Several hundred people in the crowd applauded his remarks.

World News from the BBC.

The World Health Organization says more than 3,000 people are now known to have died in the Ebola outbreak in West Africa and about 6,500 cases. Liberia has been worst hit by the disease.Our West Africa correspondent Thomas Fessy reports.

The number of deaths in Liberia is now growing faster than anywhere else.The country has recorded three times more victims than in Sierra Leone and in Guinea.Global leaders have pledged to bring in assistance but it will take weeks before the promised treatment centers are built on the ground.Some care centers can open only briefly each morning to have meet new patients to be treated in the bed whose occupants have died overnight.Medical staff across the region continue to pay a heavy price nearly 400 have been effected more than half of whom have died.

About 200 demonstrators in Hongkong have stormed the government compound and continuing protest over how to elect the city's next leader.Protesters broke through barriers and climbed over fences to get into a forecourt outside the city government's headquarters.Hongkong students have been on strikes this week to demand China's leaders give the territory more democracy.

India's Prime Minister Narendra Modi has arrived in the United States for a five day visit.He will address the UN General Assembly,hold talks with President Obama and address a large gathering of Indian-Americans.Mr.Modi was denied entry to the United States for nine years after allegations that he was complicit that 2002 sectarian violence in Gujarat.

The European space agency says it will make the first ever attempt to land a space craft on the Comet on November 12th.The reset air craft which was already the comet known as 67P will release a robotic lander in the hope of learning more about the origins of the solar system.

BBC News.