וּמִן־הִֽתְחַבְּר֥וּת אֵלָ֖יו יַעֲשֶׂ֣ה מִרְמָ֑ה וְעָלָ֥ה וְעָצַ֖ם בִּמְעַט־גּֽוֹי׃
And after the league made with him he shall work deceitfully; and he shall come up and become strong, with a little nation.
Read halakhic rulings (Jewish law) on Daniel 11:23: and classical halakhic sources.