SECTION IV.--_The Swedes establish themselves on the Coast of the Baltic (July 1630-January 1631)._ July Discipline in the Swedish Army 130 The Duke of Pomerania submits to him, but the Elector of Brandenburg declares himself neutral 130 1651 The treaty of Bärwalde between France and Sweden 132 SECTION V.--_The Fall of Magdeburg (January-May 1631)._ Jan. Success of Gustavus on the Baltic coast 133 March The Electors of Saxony hold a Protestant Assembly at Leipzig 133 Tilly attacks the Swedes, but is driven to retreat 134 Ap. 26. Treaty of Cherasco between France and the English 135 May 15. Convention between Gustavus and the Elector of Brandenburg 136 May 20. Magdeburg stormed, plundered, and burnt 136 The Emperor refuses to cancel the Edict of Restitution 137 CHAPTER VIII. THE VICTORIES OF GUSTAVUS ADOLPHUS. SECTION I.--_Alliance between the Swedes and the Saxons (June-September 1631)._ June 21. Gustavus compels the Elector of Brandenburg to an alliance 138 July Gustavus at the Camp of Werben 138 Aug. Tilly summons the Elector of Saxony to submit 139 Sept. He attacks Saxony, upon which the Elector forms an alliance with Gustavus 139 Gustavus joins the Saxons 140 SECTION II.--_Battle of Breitenfeld (September 1631)._ Sept. 17. Victory of Gustavus over Tilly at Breitenfeld 141 Wallenstein's intrigues with Gustavus 142 Wallenstein and Gustavus unlikely to agree 143 Political and military designs of Gustavus 144 He looks for a basis of operations on the Rhine 146 SECTION III.--_March of Gustavus into South Germany (October 1631-May 1632)._ Oct. March of Gustavus to Mentz 148 1632 In spite of the objections of the French, he attacks Bavaria 149 Ap. 14. Tilly defeated and mortally wounded at the passage of the Lech 149 May 17. Gustavus enters Munich 150 SECTION IV.--_Wallenstein's Restoration to command (September 1631-June 1632)._ Sept. Wallenstein breaks off all intercourse with Gustavus 151 Nov. Attempts to reconcile the Elector of Saxony with the Emperor 152