The 
War of Jenkins' Ear, also known as 
King George's war was a conflict between 
Great Britain and 
Spain that lasted from 
1739 to 
1742.  Britain declared war on Spain after hearing reports of the mistreatment of English seamen by Spain (who accused the seamen of smuggling).  Most notably, Robert Jenkins, captain of the ship 
Rebecca, exhibited his severed ear to the 
British House of Commons and claimed that Spanish coast guards had cut it off - hence the name of the conflict.  The British Prime Minister, 
Robert Walpole, then reluctantly declared war on 
October 23, 
1739. 
The War of Jenkins' Ear would later merge into the War of Austrian Succession.
 
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