Modern Era Terms O

Modern Era Terms: A-B-C-D-E-F-G-H-I-J-K-L-M-N-O-P-Q-R-S-T-U-V-W-X-Y-Z

1. October Revolution
2. OPEC
3. Operation Bagration
4. Operation Barbarossa
5. Oppenheimer, J. Robert
6. Operation Desert Storm
7. Operation Overlord
8. Operation Sea Lion
9. Ortega, Daniel
10. Orlando, Vittorio