Lelouch, acting as Zero, surprises the Black Knights and the Britannian Empire by agreeing to join the Specially Administrated Zone of Japan (SAZ) established by Governor-General Nunnally.
Suzaku faces an ethical dilemma between his duty as a Britannian Knight and his desire to prevent another massacre, eventually choosing to let the Japanese people go. Code Geass: Lelouch of the Rebellion R2 Episode 8
It is revealed that Sayoko Shinozaki was on the iceberg ship and now knows Lelouch's true identity as Zero. Lelouch, acting as Zero, surprises the Black Knights
Zero negotiates a secret deal with the Britannian leadership: he will deliver one million Elevens to the SAZ in exchange for his own legal pardon and exile from Area 11. Zero negotiates a secret deal with the Britannian
Because the law stated that "Zero" would be exiled and the Britannians had agreed that anyone sharing his ideals was Zero, Suzaku is forced to legally exile all one million participants to avoid a repeat of the massacre caused by Princess Euphemia.
The million "Zeros" board a massive iceberg ship provided by the Chinese Federation, successfully escaping Britannia's jurisdiction. Key Themes
During the opening ceremony, Zero asks Suzaku Kururugi what it means to be "Japanese". When Suzaku answers that it is a matter of the heart, Zero releases a smoke screen. When it clears, every single one of the one million participants is dressed in a Zero costume.