ESV: But if it makes no peace with you, but makes war against you, then you shall besiege it.
NIV: If they refuse to make peace and they engage you in battle, lay siege to that city.
NASB: However, if it does not make peace with you, but makes war against you, then you shall besiege it.
CSB: However, if it does not make peace with you but wages war against you, lay siege to it.
NLT: But if they refuse to make peace and prepare to fight, you must attack the town.
KJV: And if it will make no peace with thee, but will make war against thee, then thou shalt besiege it:
NKJV: Now if the city will not make peace with you, but makes war against you, then you shall besiege it.