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#roman aquila #roman legion #eagle standard #SPQR #roman empire #military standard #ancient rome

5️⃣•5️⃣6️⃣×4️⃣5️⃣⭐

#5.56x45 #nato #ammunition #cartridge #STANAG 4172 #rifle round #caliber #bullet dimension #military standard

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#chi rho #constantine #roman standard #vexillum #military standard #christogram

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#war banner #ensign #military standard #battle flag #alem