The battle of Beas River was a battle between Chagatai Khanate army and the Mamluk sultanate in 1285. Ghiyas ud din Balban arranged a military defense line across Beas River as part of his "blood and iron" fortification chain strategy at Multan and Lahore as a countermeasure against the Chagatai Khanate invasion. However, his son Muhammad Khan was slain in battle.
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Battle of Beas River Wikipedia(Text) CC BY-SA