ESV: When you blow an alarm, the camps that are on the east side shall set out.
NIV: When a trumpet blast is sounded, the tribes camping on the east are to set out.
NASB: And when you blow an alarm, the camps that are pitched on the east side shall set out.
CSB: "When you sound short blasts, the camps pitched on the east are to set out.
NLT: When you sound the signal to move on, the tribes camped on the east side of the Tabernacle must break camp and move forward.
KJV: When ye blow an alarm, then the camps that lie on the east parts shall go forward.
NKJV: When you sound the advance, the camps that lie on the east side shall then begin their journey.