King James Version (KJV)
And it came to pass in process of time, that the children of Ammon made war against Israel. {in process...: Heb. after days}
Modern English
After a while, the children of Ammon made war against Israel.
Hebrew
וַיְהִ֖י מִיָּמִ֑ים וַיִּלָּחֲמ֥וּ בְנֵֽי־עַמּ֖וֹן עִם־יִשְׂרָאֵֽל׃
vayhiy miyamiym vayilaḥamv bney-ʿamvon ʿim-yishraʾel