Only by means of God's direction intervention

 "I looked and there was no one (among the nations) helping (the Jewish people)." Haftarah Nitzavim

"This verse teaches us that we must not make the mistake of hoping that any political, sociological, or other/natural human process per se will lead us to Redemption. The true Redemption can occur only by means of God's direction intervention, which we will elicit and hasten by fulfilling our Divine mission to make the world His home by by dissemination of Divine consciousness through prayer, the study of Torah, and the performance of the commandments. In the words of the sages of the Talmud, "We have no one to rely on save our Father in heaven."

Lubavitcher Rebbe, Hitva'aduyot 5722, Vol. 2, p. 289, Haftarah, parshas Nitzavim, Chayenu, 2019.

This is similar to this:

“When, during the reign of Hadrian, the uprising led by Bar Kochba proved a disastrous error, it became essential that the Jewish people be reminded for all times of another important fact; namely, that Israel must never again attempt to restore its national independence by its own power; it was to entrust its future as a nation solely to Divine Providence. Therefore when the nation, crushed by this new blow, had recovered its breath and hailed even the permission to give a decent burial to the hundreds of thousands who had fallen about Betar as the dawn of a better day, the sages who met at Yavneh added yet another blessing to the prayer for the restoration of Jerusalem. This fourth blessing is an acknowledgement that it has always been G-d and G-d alone Who has given us, and still gives us to this very day, that good in which we have had cause to rejoice; and that for future good, too, we may look to none other but G-d, and none besides Him." 

R' Samson Raphael Hirsch, Commentary to the Prayer Book, p. 703