The Brooklyn headquarter of the Watchtower Society is pro German in an exemplary way and has been so for many years. For that reason, in 1918, the president of the Society and seven members of the board of directors were sentenced to 80 years in prison, because the president refused to use two of the magazines published in America under his direction for war propaganda against Germany. These two magazines, "The Watchtower" and "Bible Student" were the only magazines in America which refused to engage in anti-German propaganda and for that reason were prohibited and suppressed in America during the war. (Rutherford's letter to Hitler)
This was a big lie, because in 1918, under Rutherford, The Watchtower endorsed to buy war bonds (Liberty Bonds) to support the United States against Germany. Let's read what the Watchtower said:
The International Bible Student's Association is not against the Liberty Loan. Many of its members have bought and hold Liberty Bonds[...]Every Christian obeys the law. The United States has always stood for religious liberty and freedom of speech. Every Christian appreciates the privilege of living in such a country and gladly meets his obligations in the payment of taxes. When the Government asks to borrow his money and gives its promises to pay in the nature of a bond, if he can do so he should buy the bond. (15 May 1918 Watch Tower, p. 152)
Also, the Watchtower was joined in a prayer in favor to the allies against Germany, as the Proclaimers book admits on page 191:
“Although they endeavored to do what they felt was pleasing to God, their position was not always one of strict neutrality … Thus, in accord with a proclamation of the President of the United States, The Watch Tower urged the Bible Students to join in observing May 30, 1918, as a day of prayer and supplication in connection with the outcome of the world war. [The Watch Tower, June 1, 1918, p. 174]”
So, Rutherford was not neutral during the First World War, and he was not pro German. Interestingly, these things were published during the time of Jesus' inspection (1914-1919, according to the new light).