北约秘书长吕特：与美国的武器交易既可用于防御，也可用于进攻。

Group 1 - The core viewpoint of the article emphasizes that arms transactions with the United States can serve both defensive and offensive purposes [1] Group 2 - The statement reflects the dual-use nature of military equipment, indicating that such transactions are not limited to defensive strategies but can also be utilized for offensive operations [1] - This perspective may influence NATO's strategic planning and defense policies moving forward, highlighting the importance of understanding the implications of arms trade [1] - The comments from NATO Secretary General Jens Stoltenberg underline the ongoing discussions regarding military preparedness and the role of the U.S. in global defense initiatives [1]