According to Daniel 1, in which year of King Jehoiakim's reign did Nebuchadnezzar besiege Jerusalem?

Answer: Third year

Daniel 1:1 dates Nebuchadnezzar's siege of Jerusalem to the third year of Jehoiakim king of Judah.

“In the third year of the reign of Jehoiakim king of Judah, Nebuchadnezzar king of Babylon came to Jerusalem and besieged it.”— Daniel 1:1 (BSB)