Flag of Switzerland dates to 1540, in the context of an auxiliary force sent by the Swiss to aid their associate, the city of Rottweil, in a feud against the lords of Landenberg. The "Tagsatzung" decided that the Swiss auxiliaries sent to Rottweil should receive "a red flag with a white upright cross". The first mention of the term "Confederate Cross" ("Eidgenossen Crütz") dates to 1533. Because of the Swiss pledge of neutrality, there was no military conflict in which the Swiss confederate troops participated after 1540. Consequently, the confederate field sign fell out of use. At the same time, the former field
Flag of Switzerland 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 11 October 1841. The 1841 flag shows a bold cross suspended in the center of the square field. The proportions of the cross arm are 1:1, i.e. the cross