Joshua 10:34 KJV

And from Lachish Joshua passed unto Eglon, and all Israel with him; and they encamped against it, and fought against it:

Seven other kings defeated and slainJoshua made speed in taking these cities. See what a great deal of work may be done in a little time, if we will be diligent, and improve our opportunities....

Joshua 10:3 Wherefore Adonizedek king of Jerusalem sent unto Hoham king of Hebron, and unto Piram king of Jarmuth, and unto Japhia king of Lachish, and unto Debir king of Eglon, saying,
Joshua 12:12 The king of Eglon, one; the king of Gezer, one;
Joshua 15:39 Lachish, and Bozkath, and Eglon,

From OpenBible.info, most relevant first.

Canaan Conquest of, by the Israelites
Captive Putting to death
God Victories over the Canaanites under Joshua
Hebron Hoham, king of, confederated with other kings of the Canaanites against Joshua
Hittites Conquered by Joshua
Israel Defeat the five Amoritish kings
Jebusites Conquered by Joshua
Joshua The six kings make war upon the Gibeonites; are defeated and killed
Massacre Of the cities of the seven kings
War Of extermination

LachishImpregnable, a royal Canaanitish city in the Shephelah, or maritime plain of Palestine (Josh 10:3, Josh 10:5; Josh 12:11). It was taken...
JoshuaJehovah is his help, or Jehovah the Saviour. The son of Nun, of the tribe of Ephraim, the successor of Moses as the leader of Israel. He...
EglonThe bullock; place of heifers. (1.) Chieftain or king of one of the Moabite tribes (Judg 3:12–14). Having entered into an alliance with...
IsraelThe name conferred on Jacob after the great prayer-struggle at Peniel (Gen 32:28), because “as a prince he had power with God and...

And from Lachish עִמּוֹ ʿimmô Preposition · with suffix: third person masculine singular מִלָּכִישׁ millākîš לָכִישׁ Proper name · with preposition
Joshua יְהוֹשֻׁעַ yĕhôšuaʿ יְהוֹשׁוּעַ Proper name
passed וַיַּעֲבֹר wayyaʿăbōr עָבַר Verb · qal sequential imperfect, third person masculine singular · with and
unto Eglon עֶגְלֹנָה ʿeglōnâ עֶגְלוֹן Proper name · with ending: toward
and all Israel וְכָל wĕkol Noun · masculine singular construct · with and יִשְׂרָאֵל yiśrāʾēl יִשְׂרָאֵל Proper name
with him; and they encamped וַיַּחֲנוּ wayyaḥănû חָנָה Verb · qal sequential imperfect, third person masculine plural · with and
against it, and fought עָלֶיהָ ʿālêhā Preposition · with suffix: third person feminine singular וַיִּלָּחֲמוּ wayyillāḥămû לָחַם Verb · niphal sequential imperfect, third person masculine plural · with and עָלֶיהָ ʿālêhā Preposition · with suffix: third person feminine singular

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