SoftBank will combine with Sprint to become one of the world’s largest carriers.

SoftBank, Japan’s third-largest carrier, has this morning announced that it will acquire Sprint in a deal worth $20.1 billion. The company will purchase $8 billion in newly-issues shares from Sprint, in addition to $12.1 billion in existing shares — giving it a 70% stake overall.

SoftBank sees Sprint deal as the fastest route into the U.S.

Japan’s third-largest carrier is reportedly in talks to buy control of Sprint, according to two people familiar with the matter. SoftBank wants to snap up two-thirds of the company with a stake worth “more than” 1.5 trillion yen ($19 billion), and it’s also eyeing Sprint’s partner, Clearwire, too.