MCQOPTIONS
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| 1. |
Russia is leaving the Open Skies Treaty (OST). In which year, the United States left the OST first after accusing Russia of violating the pact? |
| A. | 2020 |
| B. | 2019 |
| C. | 2018 |
| D. | 2017 |
| E. | 2016 |
| Answer» B. 2019 | |