Rabbi Sholom Ber Schneerson, known to be a vociferous opponent of Zionism, and the Rebbe of Lubavitch before World War 1, wrote the following to Rabbi Aaronson, a Zionist sympathizer:

From all the writings of the Zionists we can clearly see that their main aim and activity is to create the impression among the Jewish People that the whole purpose of the Torah and the commandments is merely to strengthen national feeling. This theory can easily be adopted by the youth who regard themselves as instruments prepared for the fulfillment of the Zionist ideal. They regard themselves as completely liberated form Torah and the commandments. They think nationalism has replaced religion...

When Herzl was in the Holy Land he was far removed from G-d. He OPENLY PROFANED THE TORAH BY ENTERING THE HOLY CITY ON THE SABBATH. HE WENT TO THE SITE OF THE SANCTUARY WHICH EVEN FROM A HUMAN POINT OF VIEW HE SHOULD NOT HAVE DONE, THUS OPENLY PROFANING THE SABBATH IN THE HOLY CITY, AND IN THE PLACE OF HIS TEMPLE, DOING EVIL IN THE SIGHT OF G-D.

In order to influence our brethren in favor of the Zionist aspiration for an independent nation and government, they have no alternative but to lead the people astray from the path of of Torah and the commandments, or at least, to weaken their attachment as much as possible SO THAT NATIONALISM SHOULD PREVAIL OVER TORAH, BECAUSE IT IS KNOWN THAT THOSE ATTACHED TO THE TORAH ARE UNLIKELY TO CHANGE AND ACCEPT SOME OTHER FORM OF FAITH.

It is surely clear that the Zionists not only are not approaching Judaism, but that they entirely destroy Jewish souls in intentionally TAKING AWAY FROM THEM EVEN THE HIDDEN AND MYSTICAL FEELING IN THEIR SOULS FOR THE TORAH AND THE COMMANDMENTS....

Sholom Ber Schneerson