This video has been viewed over 2,825,016 times and shared on Facebook and Twitter by countless people - and it's easy to see why.
It has been filmed in the now typical 'one second a day' format, taking one second of each and every day and compiling them into a story or montage.
But, while it starts with a happy little girl's 8th birthday, it takes us on a dark journey as her life is turned completely upside down by war.
Check it out:
Could this ever happen in the UK? Potentially.
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This tragic video highlights what war does to children - and, even though we can't see it happening, it is occurring in the world at this very moment.
Syria's civil war has cost the lives of more than 11,000 children and turned more than 1 million into refugees. It has subjected them to trauma, indiscriminate shelling and even torture.
Save the Children is doing whatever it takes to keep Syrian refugee children and those trapped inside Syria, safe and healthy. They’re also helping them recover from their experiences and keep up their education.
But they need your support do help more children. Please donate to support our Syria Appeal and take action so they can ensure aid gets to children wherever they are.**
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