Humanitarian aid is usually most needed in some of the most difficult places on the planet. These are places that lack what we take for granted such as water, food and safety but instead have plenty of conflict, food insecurity and disease. If you are a child in a place like that life is difficult, often far too short and full of terrible choices.
Over recent weeks and months we've seen attacks on civilian targets such as hospitals and aid convoys in Syria and Yemen. We appeal to all parties to respect the basic principles of international humanitarian law - precaution, protection and distinction of civilians. Everything must be done to allow the safe and unimpeded access to any humanitarian organisation working to protect and assist the people fleeing Mosul.
With this knowledge, and with courage and honesty, we must build on the rhetoric of the New York meeting to identify practical solutions. In today's globalised world, where instability in one place can affect stability in another, we must find ways for all individuals to access opportunity, so they can contribute and achieve irrespective of where they were born.
Volunteers are not collateral damage. They are not acceptable targets when a ceasefire ends. Ceasefire or no, the rules of international humanitarian law still apply. Safe access must mean safe access. Guarantees given by fighting parties must be honoured. This recent attack has horrified people across the world. It has also denied 78,000 people of much-needed aid. These attacks cannot and must not continue. We call for all aid workers to be respected and protected. This, sadly, may not be the first time aid workers have been attacked. But it should be - it must be - the last.
Just over a year ago you will have seen a photograph of the lifeless body of Alan Kurdi on an Aegean beach. It was said that the photograph "shook the world", but more than 3,000 more people have died, or are missing, in the Mediterranean this year alone. We, and our politicians, might disagree about many things but we should all agree that the senseless death of children - on any scale - is not something that we can ignore.
In wars and disaster zones, a simple explanation is that humanity is a force that advances the idea of life, with dignity. To strengthen the idea of humanity for people caught in conflicts, epidemics and disasters, we could borrow some ideas from the Olympic motto: Citius (faster), Altius (higher) and Fortius (stronger).
Most conflicts now burn on for an average of 37 years, and those uprooted by them are crying out for a humanitarian response that reflects this. If a new deal for Kenya is realised over the coming months, Dadaab may no longer remain an anachronism. It could, with the right imagination, political drive and institutional support, come to represent the future.
This year I've travelled to some pretty difficult places. My work has taken me to war-torn Central African Republic (CAR) and to the Democratic Republic of the Congo (DRC) in Africa. I have also travelled to the border of Serbia and Macedonia where I met refugees fleeing the fighting in Syria, Iraq and Somalia. In particular, I remember meeting children far too familiar with the sound of gunfire.
Ending the UK's commitment to spend just 7p out of every £10 of our national wealth on international aid is not the answer. This will send the wrong signal to both the countries we are asking to commit to the same spending, and importantly to the hundreds of millions of the world's poorest who we are supporting to lift out of poverty once and for all.