Flag of Switzerland confiscated all earlier flags, replacing them with the new 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
Flag of Switzerland squares until 1889, when its dimensions were officially set. The civil and state ensign of Switzerland, used by Swiss ships, boats and non-governmental bodies, is rectangular in shape and has the more common proportions of 3:2. The Swiss flag is one of only two square sovereign-state flags, the other being the flag of Vatican City. The emblem of the Red Cross is the Swiss flag with switched colours. According to the 2017 flag law (SR 232.21), "The Swiss flag shows a Swiss cross on a square background". Special provisions are made for the naval ensign and for civil aircraft identification.