QoG code: atop_defensive
Defensive Obligation
Coded 1 if the alliance member promises to provide active military support in the event of attack on the sovereignty or territorial integrity of one or more alliance partners. A promise to treat such an attack on one alliance member as an attack on all alliance members qualifies as a promise of defensive support.
| Dataset | No. Countries |
|---|---|
| Standard time-series | 190 |
| OECD time-series | 32 |
| Dataset | Available for years |
|---|---|
| Standard time-series | 1946-2018 |
| OECD time-series | 1946-2018 |
This variable has information from 1946 to 2018.