World War I in Photos: Global Conflict - The Atlantic
File:German ships battle to conquer the island of Osel in the Gulf of Riga, WWI (29411745455).jpg - Wikimedia Commons
Battle of Jugla - Wikipedia
German troops ready for amphibious assault, Battle of Riga, 1917. : r/TheGreatWarChannel
File:Latvian Independence War 1918.svg - Wikimedia Commons
File:German officers riga ww1.jpg - Wikimedia Commons
THE BATTLE OF RIGA, SEPTEMBER 1917 | Imperial War Museums
Battle at the Little Jugla River / Riga operation
Eastern Front and Baltic Sea, Naval War
THE BATTLE OF RIGA, SEPTEMBER 1917 | Imperial War Museums
Battle of the Gulf of Riga and Moon Island (October 1917)
Battle of Jugla - Itier offensive
THE BATTLE OF RIGA, SEPTEMBER 1917 | Imperial War Museums
WWI Vellum MAP World War 1 "RIGA and DVINSK" Latvia WW1 Antique & Rare | eBay
Timeline of September 1917 - The Long, Long Trail
events, First World War / WWI, Eastern Front, dead Russian soldiers near Riga, Latvia, 4.9.1917, Additional-Rights-Clearences-Not Available Stock Photo - Alamy
Brill's Digital Library of World War I — Brill
Today in World War I — Reds Take Riga
History of Kraslava - Page Two
1917: Special Operations Begin | Defense Media Network
Eastern Front (World War I) - Wikiwand
