The end of the Battle of Amiens (see Aug. 8): it has disengaged Amiens, freed the Paris-Amiens railway, and seriously weakened the enemy's position; captures by the British during the battle amount to 21,850 prisoners and 400 guns. British airmen destroy a German airship off the Frisian coast. Aug. 13 (Tues.) The Czecho-Slovaks are officially declared to be an Allied nation. The French approach Lassigny. Aug. 14 (Wed.) The Germans extend their withdrawal on the Ancre Front, their whole line in this area being threatened by the British advance further south: they evacuate Beaumont Hamel, Serre, Puisieux, and Bucquoy. The French capture Ribécourt, on the Oise. Aug. 15 (Thur.) The British advance across the Ancre. The French complete the capture of the Lassigny _massif_: this ends the Second Battle of Lassigny (see Aug. 9). A German aeroplane raid on Paris. H.M.S. _Scott_ (flotilla leader) and H.M.S. _Ullswater_ (destroyer) are sunk by submarine in the North Sea. Aug. 16 (Fri.) The French make further progress south of Lassigny. Aug. 17 (Sat.) The French (under General Mangin) advance between the Oise and the Aisne. Siberia:--The Czecho-Slovaks recapture Irkutsk, having lost it to the Bolshevists during July (see July 8). Aug. 18 (Sun.) The Lys Front:--The British attack on a four-mile front between Vieux Berquin and Bailleul and capture Oultersteene and over 400 prisoners. The French offensive between the Oise and Aisne develops. Aug. 19 (Mon.) The Lys Front:--The British capture Merville. The French advance in the Ribécourt sector towards Noyon. Aug. 20 (Tues.) The French continue to advance between the Oise and the Aisne and reach Lombray; they capture over 8000 prisoners. Aug. 21 (Wed.) The Battle of Bapaume begins (see Aug. 31): the British 3rd Army (Byng) attacks on a ten-mile front between Albert and Arras; Beaucourt, Achiet-le-Petit, Courcelles, and Moyenville are captured. Between the Oise and the Aisne the French outflank Noyon, reaching the line Pontoise--Cuts--Camelin. British air-squadrons bomb Frankfurt, Cologne, Mannheim, and Trèves (night of Aug. 21-22). Aug. 22 (Thur.) The British attack on a six-mile front between Albert and Bray; they capture Albert and penetrate the German positions to a depth of two miles. The French continue to advance south of the Oise and capture St. Aubin and Pommières. The Austrians launch a counter-offensive in Albania. The Bolshevists defeat the Trans-Caspian forces and capture Merv. Aug. 23 (Fri.) The British attack and advance on a thirty-mile front from Mercatel (5 miles south of Arras) to Lihons (8 miles south of the Somme): they capture Boyelles, Hamelincourt, Ervillers, Gommiécourt, and Achiet-le-Grand in the northern sector of the attack, and in the south Chuignolles and Chuignes. Aug. 24 (Sat.)