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  1. Ticonderoga-class guided-missile cruiser USS Chancellorsville
  2. Space shuttle Discovery backdropped by Earth's horizon
  3. Conceptual image of human tooth
  4. A Fully Armed MQ-9 Reaper Taxis Down An Afghanistan Runway
  5. A Landing Craft Air Cushion Comes Ashore At US Marine Corps Base Camp Pendleton, CA
  6. Vintage Travel Poster For Rainier National Park, 1920
  7. Sailors man the rails as the ship pulls into Naval Station Norfolk
  8. A U.S. military truck with wrecker mount towing a jeep, 1942
  9. President John F. Kennedy
  10. Member of the US Navy parachute demonstration team
  11. Vintage portrait of President Ulysses S. Grant
  12. AV-8B Harriers line the flight deck of amphibious assault ship USS Tarawa
  13. Stars and Stripes flying boldly, seen from the crow's nest aboard USS Donald Cook
  14. The Nimitz-Class Aircraft Carrier USS George Washington
  15. Vintage Carl Hagenbeck's Tierpark Circus Poster Of A Giraffe, 1916
  16. Pallets Of Cargo Inside Of A C-17 Globemaster III
  17. Firefighters extinguish a simulated cargo fire at RAF Mildenhall, England
  18. Vintage Travel Poster For Flying Northwest Airlines To New York, Of Statue Of Liberty
  19. A woman assembles part of the cowling of a B-25 bomber motor, circa 1942
  20. The Snake Wagon, With A Snake Performer At A Circus, 1874
  21. A Japanese light tank sits atop the medium tank Killer
  22. Conceptual image of the coronavirus
  23. Airman floats through the sky carrying the American flag
  24. Comparison Of A Normal Eye And An Eye With Hyperopia
  25. A US Navy HH-60H Seahawk Helicopter Dispenses Flares And Chaff
  26. A B-2 Spirit Flies Into Position During A Refueling Mission
  27. Vintage Circus Poster Of Five Ringling Brother's Bust Portraits, 1903
  28. A F-22 Raptor Flies In Formation With The Royal Air Force Aerobatic Team, The Red Arrows
  29. US Air Force Master Sergeant Guides A CH-47 Chinook To A Drop Site
  30. A Standard Missile Three is launched from the Mark 41 Vertical Launch System
  31. A KC-135 Stratotanker refuels an F-15E Strike Eagle
  32. Different types of acne, non-inflammatory and inflammatory
  33. An F-15E Strike Eagle breaks away from a KC-135 Stratotanker after refueling
  34. US Navy Landing Craft Air Cushion Enters The Well Deck Of The USS Green Bay
  35. The Wall Of Fire Is Set Off Behind The U.S. Navy Blue Angel Demonstration Team
  36. US Army Combat Infantrymen Provide Security During A Patrol
  37. Vintage Circus Poster Of Portraits Of Carl Hagenbeck And BE Wallace
  38. A CH-53E Super Stallion Conducts Flight Operations
  39. Ulysses S. Grant August 6, 1885
  40. Vintage Travel Poster Of A Northwest Orient Airlines System Map, 1950
  41. Vintage 1936 Travel Poster Promoting Lancaster County, Pennsylvania, Of An Amish Family
  42. The Guided-Missile Frigate USS Underwood
  43. Aviation Ordnancemen Fold The American Flag Aboard USS Theodore Roosevelt
  44. Women workers building assault boats for US Marine Corps
  45. Vandenberg successfully launched a Delta II rocket from Space Launch Complex-2
  46. Amphibious transport dock ship USS San Antonio transiting the Gulf of Aden
  47. Vintage Travel Poster For Alaska Northern Pacific Of Umiaks Carrying Native Alaskans
  48. USS Nimitz Arrives At Joint Base Pearl Harbor Hickam