The countdown to the wedding of Prince Harry and Meghan Markle is well and truly underway. From the 100,000 spectators expected to line the cobbled streets of Windsor to the many millions watching coverage around the world, the event is set to be a global phenomenon.

With the world watching the couple's every move, our latest blog looks back to Prince Harry's first act in his new role of Commonwealth Youth Ambassador – the launch of 150 new Commonwealth Scholarships, to be run by the ACU.

The blog, which is written by ACU Secretary General Dr Joanna Newman, reflects on Prince Harry's words to the Commonwealth Heads of Government Meeting last month, in which he stated his belief in the power of young people to bring about change and the need to tackle the root causes of global challenges. Higher education, Dr Newman argues, is pivotal to both of these, and we must ensure that no one is left behind when it comes to accessing it.

• Read the blog in full here