New global data from Unicef shows that millions of children around the world suffer physical violence every day. Around 120million girls under the age of 20 (about one in 10) have been subjected to forced sexual intercourse or other forced sexual acts at some point in their lives; boys are also at risk, although there is no global estimate due to the lack of comparable data in most countries... I hope very much that the world leaders, starting to gather in the chambers of the UN as I write, will make a commitment over the next year to champion a target to end abuse, exploitation and violence against children.
For thousands of children in Syria, summer vacation is no longer about taking a break from their hectic school lives. On the contrary, with displacement and violence regularly interrupting normal classes, many children around the country used their summer break to visit school clubs and catch up on lost school days.
"We walked for more than 20 hours with no food or water," says Juan, an adolescent girl who arrived at Nawrouz refugee camp in north-east Syria three days ago, along with eight family members. Juan is from the Yazidi minority group, many of whom are fleeing to Syria from the mountains of Sinjar in Iraq.
Today, Usain Bolt will compete in the 100m relay for Jamaica in his first ever Commonwealth Games. As the fastest man in the world, he is one of Jamaica's most famous exports, alongside the country's glorious, sun kissed beaches that thousands travel to every year. But my trip to the small island in the Caribbean with UNICEF was to see a very different way of life.
During the course of my humanitarian work in Syria, I have listened to many children share their perspectives. The death of family members, whether siblings or a parent or other loved one is common. Being displaced from their homes, often more than once, and finding their friends and communities snatched away. Memories of repeated attacks from warring parties that flattened whole neighborhoods, fires that raged through the night stay with them.
I was part of a recent humanitarian mission that delivered emergency assistance to children and families in six hard-to-reach villages in northwestern Aleppo governorate. For some families living in this remote area near the Turkish border, it had been almost two years since they had received humanitarian supplies...
UNICEF is providing humanitarian assistance to millions of conflict-affected children and families in Syria, including through support for safe drinking water and to the on-going polio campaign. It is essential that life-saving assistance reaches all those affected by the conflict, particularly children and women, no matter where they are in the country.
With the Formula One season in full flow, you could be forgiven for thinking that my life at the moment is focused on non-stop training, qualifying and racing. It's often difficult to find time for anything else, but earlier this month I was able to visit Haiti with Unicef, the world's leading children's organisation, to make an appeal film for this year's Soccer Aid, which returns for the fifth time on Sunday 8 June.... No child, no matter where they live in the world should go hungry or lose their life because they or their family don't have enough to eat. That's why I'm asking everyone to tune in on June 8 and give what they can.
South Sudan's children are suffering - and the crisis is set to get worse - much worse - in the coming months if more action is not taken urgently. The world's newest nation is on the brink of devastation with a brutal conflict destroying hundreds of thousands of lives and a growing humanitarian emergency putting the entire future of the country and its children in jeopardy. The United Nations Secretary General has predicted that by the end of this year, an incredible half of South Sudan's 12million people will be either in flight, facing starvation, or dead. At least half of these will be children.
UNICEF works tirelessly to protect children from sexual violence in every conflict zone around the world. From working with governments to reform laws, to supporting communities to challenge beliefs on gender roles - UNICEF teams work around the clock to protect children and support those who have experienced sexual violence.
During my visit to the Unicef-supported Basic Education School for displaced grade one to four children at the Aleppo University I met a number of confident, upbeat children, not shy to ask tough questions... As a mother, I could not hold back my tears when a young girl got up and asked me: "When will this war end?"
As a football-obsessed young boy growing up in South Wales I never thought I would have the chance to play at Old Trafford in front of more than 60,000 people. If you'd told me I'd be captaining a team filled with a host of football legends and Hollywood stars I would have laughed. Playing in Soccer Aid sometimes does feel like a bit of a dream - I know the other guys involved also treasure this unique experience. But when I lead the Rest of the World team out on 8 June, it won't just be football on my mind; because there's a bigger reason why we come together every two years for this extraordinary football match.
More than six months after confirmation of the first polio case in Syria, Unicef continues to support efforts to tackle the outbreak in all parts of the country. The April nationwide polio round which started this week aims to reach 2.8million children across Syria with a special focus on hard-to-reach children in conflict zones and besieged areas...
Over the past three years, I have often commented on the events in Syria that have unfolded with cruel intensity. And during this period, I have also been struck by the sheer audacity of the regime and - later - by the barbarity of so-called jihadist elements that together have used the Syrian people as cannon fodder in pursuit of their objectives and interests.
When I visited a refugee registration centre in Lebanon recently, I heard stories of young children who have been through shocking experiences. Syrian boys and girls have fled conflict, lost their homes and watched friends and family members being killed. And now these children are facing another threat - the often hidden horror of sexual violence.
Right this second all around the world, millions of children are in danger. Huge numbers of children are caught up in emergencies, like conflicts in Syria and South Sudan and natural disasters like Typhoon Haiyan in the Philippines. In the Philippines 1.7million children were forced from their homes when the Typhoon swept through their communities. I saw myself how children's lives have been destroyed and how they are slowly recovering with the help of UNICEF. As a father, it was a moving experience and the memories of the children I met will stay with me for the rest of my life.