Bern was occupied by French troops in 1798 during the French Revolutionary Wars.
Bern was occupied by French troops in 1798 during the French Revolutionary Wars, when it was stripped of parts of its territories. It regained the Bernese Oberland in 1802, and following the Congress of Vienna of 1814 newly acquired the Bernese Jura, once again becoming the largest canton of the confederacy as it stood during the Restoration, and further until the secession of the canton of Jura in 1979. In 1848 Bern was made the Federal City (seat of the Federal Assembly) of the new Swiss federal state.
A number of congresses of the socialist First and Second Internationals were held in Bern, particularly during World War I when Switzerland was neutral; see Bern International.