Why did Janeway help the Borg?

Could you elaborate on the motivations behind Janeway's decision to aid the Borg? Was it a strategic alliance for the Federation's benefit? Did she see a potential for mutual understanding and cooperation between the two seemingly incompatible entities? Or was there a deeper, personal reason that drove her to extend a helping hand to a race that had previously been viewed as a threat? Understanding the complexities of Janeway's choice and the implications it had for the future of interstellar relations would be of great interest to the scientific and diplomatic communities alike.