From BiblePortal Wikipedia

King James Dictionary [1]

League n. leeg. L. ligo, to bind.

1. An alliance or confederacy between princes or states for their mutual aid or defense a national contract or compact. A league may be offensive or defensive, or both. It is offensive, when the contracting parties agree to unite in attacking a common enemy defensive, when the parties agree to act in concert in defending each other against an enemy. 2. A combination or union of two or more parties for the purpose of maintaining friendship and promoting their mutual interest, or for executing any design in concert.

And let there be 'twixt us and them no league, nor amity.

LEAGUE, leeg.

1. To unite, as princes or states in a contract of amity for mutual aid or defense to confederate. Russia and Austria leagued to oppose the ambition of Buonaparte. 2. To unite or confederate, as private persons for mutual aid.

LEAGUE, n. leeg. Low L. leuca.

1. Originally, a stone erected on the public roads, at certain distances, in the manner of the modern mile-stones. Hence, 2. The distance between two stones. With the English and Americans, a league is the length of three miles but this measure is chiefly at sea. The league on the continent of Europe, is very different among different nations. The Dutch and German league contains four geographical miles.

Webster's Dictionary [2]

(1): ( v. i.) To unite in a league or confederacy; to combine for mutual support; to confederate.

(2): ( n.) A measure of length or distance, varying in different countries from about 2.4 to 4.6 English statute miles of 5.280 feet each, and used (as a land measure) chiefly on the continent of Europe, and in the Spanish parts of America. The marine league of England and the United States is equal to three marine, or geographical, miles of 6080 feet each.

(3): ( n.) A stone erected near a public road to mark the distance of a league.

(4): ( n.) An alliance or combination of two or more nations, parties, or persons, for the accomplishment of a purpose which requires a continued course of action, as for mutual defense, or for furtherance of commercial, religious, or political interests, etc.

(5): ( v. t.) To join in a league; to cause to combine for a joint purpose; to combine; to unite; as, common interests will league heterogeneous elements.

Easton's Bible Dictionary [3]

 Exodus 23:32,33 34:12-16 Exodus 17:8,14 Deuteronomy 25:17-19 Deuteronomy 2:9,19

Holman Bible Dictionary [4]

 Daniel 11:23

Morrish Bible Dictionary [5]

See Alliance

Cyclopedia of Biblical, Theological and Ecclesiastical Literature [6]

( בְּרַית , Berith', a Contract or "covenant;" also חָבִר , Chabar' [ Daniel 11:23], to "join" in alliance; th חָ , karath', to Cut, i.e. "make" a league), a political confederacy or treaty. That the Hebrews, surrounded on every side by idolatrous nations, might not be seduced to a defection from Jehovah their king, it was necessary that they should be kept from too great an intercourse with those nations by the establishment of various singular rites; but, lest this seclusion from them should be the source of hatred to other nations, Moses constantly taught them that they should love their Neighbor, i.e. every one with whom they had intercourse, including foreigners ( Exodus 22:21;  Exodus 23:9;  Leviticus 19:34;  Deuteronomy 10:18-19;  Deuteronomy 24:17-18;  Deuteronomy 27:19; comp.  Luke 10:25-37). To this end, he showed them that the benefits which God had conferred upon them in preference to other nations were undeserved ( Deuteronomy 7:6-8;  Deuteronomy 9:4-24). But, although the Hebrews individually were debarred from any close intimacy with idolatrous nations by various rites, yet as a nation they were permitted to form treaties with Gentile states, with the following exceptions:

(1.) The Canaanites, including the Philistines; with these nations the Hebrews were not permitted to enter into any alliance whatever ( Exodus 23:32-33;  Exodus 34:12-16;  Deuteronomy 7:1-11;  Deuteronomy 20:1-18). The Phoenicians, although Canaanites, were not included in this deep hostility, as they dwelt on the northern shore of the country, were shut up within their own limits, and did not occupy the land promised to the patriarchs.

(2.) The Amalekites, or Canaanites of Arabia, were also destined to hereditary enmity, unceasing war, and total extermination ( Exodus 17:8;  Exodus 17:14;  Deuteronomy 25:17-19,  Judges 6:3-5;  1 Samuel 15:1;  1 Samuel 15:33;  1 Samuel 27:8-9;  1 Samuel 30:1;  1 Samuel 30:17-18).

(3.) The Moabites and Ammonites were to be excluded forever from the right of treaty or citizenship with the Hebrews, but were not to be attacked in war, except when provoked by previous hostility ( Deuteronomy 2:9-19;  Deuteronomy 23:3-6;  Judges 3:12-30;  1 Samuel 14:47;  2 Samuel 8:2;  2 Samuel 12:26). With the Midianitish nation at large there was no hereditary enmity, but those tribes who had conspired with the Moabites were ultimately crushed in a war of dreadful severity ( Numbers 25:17-18;  Numbers 31:1-18). Yet those tribes which did not participate in the hostilities against the Hebrews were included among the nations with whom alliances might be formed, but in later times they acted in so hostile a manner that no permanent peace could be preserved with them ( Judges 6:1-40;  Judges 7:1-25;  Judges 8:1-21). No war was enjoined against the Edomites; and it was expressly enacted that, in the tenth generation, they, as well as the Egyptians, might be admitted to citizenship ( Numbers 20:14-21;  Deuteronomy 2:4-8). The Edomites also, on their part, conducted themselves peaceably towards the Hebrews till the time of David, when their aggressions caused a war, in which they were overcome. From that time they cherished a secret hatred against the Hebrews ( 2 Samuel 8:13-14).

War had not been determined on against the Amorites on the east of the Jordan; but, as they not only refused a free passage, but opposed the Hebrews with arms, they were attacked and beaten, and their country fell into the hands of the Hebrews ( Numbers 21:21-35;  Deuteronomy 1:4;  Deuteronomy 2:24-37;  Deuteronomy 3:1-18;  Deuteronomy 4:46-49;  Judges 11:13-23). Treaties were permitted with all other nations, provided they were such as would tend to the public welfare. David accordingly maintained a friendly national intercourse with the kings of Tyre and Hamath, and Solomon with the kings of Tyre and Egypt, and with the queen of Sheba. Even the Maccabees, those zealots for the law, did not hesitate to enter into compact with the Romans. When the prophets condemn the treaties which were made with the nations. they did so, not because they were contrary to the Mosaic laws, but because they were impolitic and ruinous measures, which betrayed a want of confidence in Jehovah their king. The event always showed in the most striking manner the propriety of their rebukes ( 2 Kings 17:4;  2 Kings 18:20-21;  2 Kings 20:12-13; 2 Kings 2 Chronicles 20:35-37; 28:21;  Isaiah 7:2;  Isaiah 30:2-12;  Isaiah 31:1-3;  Isaiah 36:4-7;  Isaiah 39:1-8;  Hosea 5:13;  Hosea 7:11;  Hosea 12:1;  Jeremiah 37:5-10). See Alliance .