Completing Europe: Gas Interconnections in Central and Southeastern Europe—An Update, written by John Roberts, a nonresident senior fellow at the Atlantic Council’s Dinu Patriciu Eurasia and Global Energy Centers, takes into account the significant steps taken in the year following the publishing of the Atlantic Council’s Completing Europe—From the North-South Corridor to Energy, Transportation, and Telecommunications Union. Roberts’ latest piece “focuses on progress made in the development of gas interconnectors, the single most important element in the creation of an effective energy union and in assuring energy security for Europe.”