The phrase "ambition of ensuring" is correct and usable in written English.
It can be used when discussing a strong desire or goal to achieve a certain level of assurance or certainty in a particular context.
Example: "Our ambition of ensuring quality in every product we deliver drives our team to constantly improve our processes."
Alternatives: "goal of guaranteeing" or "desire to secure".
David Cameron and Theresa May have briefed the cabinet that they remain committed to the Tory ambition of ensuring net migration is cut to the tens of thousands of people.
"Ofsted, under a new regional structure that provides support as well as challenge for providers, is already promoting improvement as we work towards our ambition of ensuring a good education for every child.
The Folio Society's Jean Marc Rathe said it wished to move towards "new opportunities... now that our ambition of ensuring the successful launch and firm establishment of the prize on the literary scene has been fulfilled".
He outlined his ambition of ensuring the club returned to the top tier in non-league, despite a host of financial difficulties at the club, he stated "my ambition is to see silverware in the table, and if you can't take the pressure, you shouldn't take big jobs like this one".
All the governments meeting in Doha need to raise their level of ambition to ensure that a legally binding global agreement is achieved to limit the planet's warming to 2°C.
The specific components of the bargain also appear to fall short of the panel's ambition to ensure that resources are found to meet the needs of those most likely to be left behind.
To achieve that, we must now increase our ambition to ensure the legacy of this moment is sealed as a positive pivot point in history".
"The club has the vision and ambition to ensure a successful pursuit of retaining its position as one of the top teams in English rugby, and I wish it all the very best for the future.
But this level of success requires a tremendous investment of resources, creativity and ambition to ensure that we meet our commitment as faculty and administrators to those students whose professional or family responsibilities or location do not allow them to enroll on campus.
In the work of carrying this initiative forward to next year, it will be important for the UK to increase its scope and level of ambition, ensuring that it reaches small-holder farmers, particularly women, and delivers local livelihoods and sustainable food security.
This has the added benefit of ensuring that all players -- government, business, financial, civic, university, and nonprofit leaders -- are working in concert toward a shared ambition versus all-too-common fragmentation.
