1703. Napoleonic period and Restored Confederacy After the French invasion of Swiss territory in 1798 and the subsequent collapse of the Confederation, the authorities of the newly proclaimed Helvetic Republic confiscated all earlier flags, replacing them with a green-red-yellow tricolour. General Niklaus Franz von Bachmann used the white cross in a red field his campaigns of 1800 and 1815. The term Schweizer-Fahne (later spelling Schweizerfahne) is in use for the flag from this time, recorded in a poem on the Battle of Näfels by one J. Hottinger published in 1808. The Tagsatzung (Swiss Diet) re-introduced the white cross in the red field for the seal of the Confederacy in 1814. The commission for drafting a federal constitution on 16 May 1814 recommended the adoption of a seal of the Confederacy based on the "field sign of the old Swiss". On 4 July 1815, the Diet accepted the design of the commission, adopted as the provisional seal described as "in the center, the federal red shield with the white cross as common federal heraldic emblem, surrounded by a simple circular Gothic ornament, on the outside of which the inscription 'Schweizerische Eidgenossenschaft' with the year number MDCCCXV, and in an outer circle all XXII cantonal coat of arms in circular fields, according to their federal order of precedence; around all, a simple wreath". This decision remained in force after the formation of the federal state in 1848, as was recognized by the Federal Council in 1889. As opposed to the definition of an official seal or coat of arms, it was not, at the time, usual to specify a "national flag". However, the white cross in a red field had seen frequent use on flags flown by private organizations during the Regeneration period (1830s), especially shooting, singing and gymnastics associations which at the time were a pool for progressive or "radical" agitation. The canton of Aargau introduced the flag for its troops in 1833. General Guillaume-Henri Dufour proposed use of the flag for all federal forces in 1839. The Tagsatzung on 2 September 1839 passed a resolution prescribing the use of a unified flag design for all cantonal infantry regiments. In a first circular sent to the cantonal authorities, the flag was described as a red flag with a cross touching the edges, but in 1841, the Tagsatzung opted for a proposal by Carl Stauffer, which was announced to the cantons on