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In page Peruvian Armed Forces:

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The Peruvian Marines date back to 6 November 1821, when the Peruvian Navy requested a battalion of soldiers. Its first battle was an attack on the Spanish, successfully taking the city of Arica (today Tacna). Into the mid-20th century, the Peruvian Marines modernized their equipment and by the 1980s with the Shining Path emerging as a new threat to Peru, the Marines began to be tasked with counterterrorism operations.[citation needed]