World War One Diary for Wednesday, February 7, 1917:

Home Fronts

Russia: 125,000 in Moscow and Petrograd political strikes (20 leaders arrested February 10-11).

Britain: King opens Parliament. Petrol licence issues suspended, private motoring virtually eliminated (331,897 licences in 1916).

Politics

Brazil and Argentina: Governments threaten to sever relations if Germany attacks their shipping.

Germany: All US citizens held as government hostages (until February 17).