The unmanned aerial vehicle is, we are told, the new wonder weapon in the “War on Terror”. Circling over Somalia, Pakistan, Yemen or Gaza, these pi(...)

In India, fertility rates are  down to 2.48 children per woman. Photograph: Reuters/Danish Ismail

For the past 200 years the global population has risen explosively. There were 1 billion humans in 1850. There are 7.3 billion today. Ever since the I(...)

Migrants walk along the railway tracks of the Eurotunnel terminal at the Calais-Frethun station outside the northern French port of Calais on August 10th, 2015. Photograph: FRANCOIS LO PRESTI/AFP/Getty Images

When you’re facing the world’s biggest refugee crisis since the second world war, it helps to have a sober debate about how to respond. But to do that(...)

Migrants walk in the direction of the Eurotunnel terminal  near Calais, northern France. Photograph: Philippe Huguen/AFP/Getty Images 10:11

When several thousand Irish construction workers were involved in building the Channel Tunnel more than 25 years ago, tabloid newspapers reported o(...)

Gráinne O’Hara: ‘The type of work I do is very, very compelling.’ Photograph: Aidan Crawley

The decision to seek asylum in a foreign country is almost always a last resort. Most people are keen to stay as close to home as possible, remain (...)

Somali militant Islamist group al Shabaab attacked a Mogadishu hotel on Sunday, driving a car packed with explosives through the hotel gate and killin(...)

US president Barack Obama greets his half-sister Auma Obama alongside Kenyan president Uhuru Kenyatta upon his arrival at Kenyatta International Airport in Nairobi. Photograph: Saul Loeb/AFP/Getty Images 1:34

US president Barack Obama flew into Kenya late on Friday for his first presidential visit to his father’s homeland, aiming to boost trade and security(...)

Long tradition of peacekeeping ... Irish soldiers boarding plane from Baldonnel   for Congo as part of the 1960 UN   mission. in which  nine would die in an ambush   at Niemba.

In an organisation as durable and complex as the United Nations, opportunities for reform do not come along very often. It is also singularly rare for(...)

US president Barack Obama: keeping in touch with European leaders as US continues to monitor the Greek debt crisis. Photograph: Saul Loeb/AFP/Getty images

The Obama administration has again warned of the potential damage to the European economy and the knock-on effect on the US economy if the Greek de(...)

Syrian Kurds waiting behind barbed wired on the Syrian side of the border with Turkey after they fled the Syrian town of Kobane. Photograph: Bulent Kilic/AFP/Getty Images

Islamic State is a hydra-headed military cult that grows two poisonous heads for every one lopped off. Yesterday’s attacks in France, Tunisia, Kuwait (...)