The Incident at Petrich (Greek: Επεισόδιο του Πετριτσίου; Bulgarian: Петрички инцидент), or the War of the Stray Dog (Greek: Πόλεμος του αδέσποτου σκύλου; Bulgarian: Войната на бездомното куче), was a Greek–Bulgarian crisis in 1925 that resulted in a brief invasion of Bulgaria by Greece near the border town of Petrich. The incident ended after a decision by the League of Nations.

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