Star Wars: Join the Resistance

Join the Resistance is an upcoming middle grade novel series that will be published by Disney–Lucasfilm Press. The novels will follow a group of young Resistance troopers while on the run from the First Order. The untitled first book in the series is scheduled for release on March 7, 2017.

Publisher's summary
A ragtag group of young Resistance troopers are on the run from the evil First Order in the first book of the Join the Resistance upper middle grade series.