This transformation was partially due to financial consideration, but more importantly it reflected the PLA's ambition to build an air power with both defensive and offensive capabilities.
这些转变一方面是出于财政方面的考虑，但更重要的是展现了解放军在建设攻防兼备的空中力量方面的雄心。
2
President Obama could also choose to begin supplying Ukraine with defensive weapons, a power recently granted to him by Congress.
奥巴马也可以选择开始向乌克兰提供防御性武器，这是国会近期授予他的权力。
3
However, between power and security dialectical relations, power agglomerations security effectiveness has caused the opposition between offensive realism and the defensive realism.