Which major merger created the world's largest ride-hailing platform outside of the United States, combining operations across 15 countries in Asia?

In the fast-evolving transportation industry, strategic mergers have reshaped how we move people and goods. These corporate combinations have led to technological innovations, expanded service networks, and transformed business models across air, rail, road, and maritime sectors. This trivia question examines one of the most significant transportation industry mergers of the past decade that had far-reaching implications for mobility services and transportation technology platforms.

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Grab's acquisition of Uber's Southeast Asian operations (2018)
Didi Chuxing's merger with Kuaidi Dache (2015)
Ola Cabs' acquisition of TaxiForSure (2015)
Go-Jek's merger with BlueBird Group (2017)