He was a prominent member of the Republican party, and in 1861 was a delegate to the Peace Conference in Washington.
Stephens headed the Confederate commission to the peace conference at Hampton Roads in February 1865.
Korosec in the name of the Czech and Yugoslav Clubs unreservedly rejected it and claimed that the future of both nations was an international problem which only the future Peace Conference could solve.
Much of the blame falls upon the Supreme Council, which shrank from the only effective means of allaying friction - immediate Allied occupation of the disputed zone, pending the decision of the Peace Conference.
These claims were regarded by the Peace Conference as excessive, and under the Treaty of Neuilly only the two first were allowed, though in place of the third the town and district of Tsaribrod were assigned to Yugoslavia, and thereby the main strategic key to Sofia.
