The Resistance Trilogy Series by K.A. Riley

In the Valta, no matter what month you were born, everyone is assigned the same birthday. November 1st. It's the anniversary of the day when the government declared war on the Eastern Order. The day you turn seventeen, the Recruiters come to take you away. And no one ever hears from you again. It's October 31st. Today, Kress is sixteen years old. Tomorrow, she'll be taken. The good news? So will her best friend Cardyn, and Brohn, the handsome, enigmatic boy she's avoided all her life... moreIn the Valta, no matter what month you were born, everyone is assigned the same birthday. November 1st. It's the anniversary of the day when the government declared war on the Eastern Order. The day you turn seventeen, the Recruiters come to take you away. And no one ever hears from you again. It's October 31st. Today, Kress is sixteen years old. Tomorrow, she'll be taken. The good news? So will her best friend Cardyn, and Brohn, the handsome, enigmatic boy she's avoided all her life. The bad news? Recruitment isn't what any of them expected.Weeks of training await. Military and psychological tests, escape rooms, hand-to-hand combat. The Recruits are told they're the key to winning the war. But with each day that passes, things begin to make less sense. If only Kress had been able to bring her trained raven, Render, with her.If only none of them had ever had to come to this place. less

Spoiler-free description: With the truth finally revealed, Kress and Render lead the Seventeens on a dangerous journey. But nothing is ever quite as it seems, and danger lurks behind every corner...

Aided by the Insubordinates, Kress and her Conspiracy wage a daring counter-offensive against the Patriot Army in an effort to liberate the city of San Francisco. Outnumbered, facing impossible odds, and opposed by a powerful and ruthless enemy named General Ekker, Kress and her friends hope for help as they struggle to understand and control their emerging abilities.