נִקְהֲלוּ הַיְּהוּדִים בְּעָרֵיהֶם בְּכָל־מְדִינוֹת הַמֶּלֶךְ אֳחַשְׁוֵרוֹשׁ לִשְׁלֹחַ יָד בִּמְבַקְשֵׁי רָעָתָם וְאִישׁ לֹא־עָמַד לִפְנֵיהֶם כִּי־נָפַל פַּחְדָּם עַל־כָּל־הָעַמִּים׃ (Ester 9.5
Throughout the provinces of King Ahasuerus, the Jews mustered in their cities to attack those who sought their hurt; and no one could withstand them, for the fear of them had fallen upon all the peoples.
(I don't feel the English translation really say that nobody opposed them).
וַיַּכּוּ הַיְּהוּדִים בְּכָל־אֹיְבֵיהֶם מַכַּת־חֶרֶב וְהֶרֶג וְאַבְדָן וַיַּעֲשׂוּ בְשֹׂנְאֵיהֶם כִּרְצוֹנָם׃
So the Jews struck at their enemies with the sword, slaying and destroying; they wreaked their will upon their enemies.
So I'm trying to visualize the events: did the enemies strike first or the Jews freely killed their enemies that didn't fight back?