But right after that it says that Israel was laid siege by the king of Aram. what's the idea here?
Does it mean that those particular troops that were dealt with nicely by the king of Israel and Elisha.
כב וַיֹּאמֶר לֹא תַכֶּה הַאֲשֶׁר שָׁבִיתָ בְּחַרְבְּךָ וּבְקַשְׁתְּךָ אַתָּה מַכֶּה שִׂים לֶחֶם וָמַיִם לִפְנֵיהֶם וְיֹאכְלוּ וְיִשְׁתּוּ וְיֵלְכוּ אֶל אֲדֹנֵיהֶם:
And he said, "You shall not slay. Do you slay those you have captured with your sword and with your bow? Set food and water for them and let them eat and drink and go to their masters.
כג וַיִּכְרֶה לָהֶם כֵּרָה גְדוֹלָה, וַיֹּאכְלוּ וַיִּשְׁתּוּ, וַיְשַׁלְּחֵם, וַיֵּלְכוּ אֶל-אֲדֹנֵיהֶם; וְלֹא-יָסְפוּ עוֹד גְּדוּדֵי אֲרָם, לָבוֹא בְּאֶרֶץ יִשְׂרָאֵל.
23 And he prepared for them a lavish feast, and they ate and drank, and he sent them away and they went to their masters; and Aramean troops no longer continued to invade the land of Israel.
כד וַיְהִי אַחֲרֵי כֵן וַיִּקְבֹּץ בֶּן הֲדַד מֶלֶךְ אֲרָם אֶת כָּל מַחֲנֵהוּ וַיַּעַל וַיָּצַר עַל שֹׁמְרוֹן:
24 And it was after this, that Ben-Hadad the king of Aram, mustered all his camp; and he went up and besieged Samaria.