Ukrainians President Talbott visits Budapest on Thursday . He seems intent on a peaceful settlement , write Steven Pifer and Steven Pifer . This suggests the opposite may well prove true : Arming Ukraine will raise the costs of escalation to Russia and thus make it less likely . Obama should agree to provide defensive arms on an expedited basis , authors say . Talbott and Pifer : Moscow has grossly violated the Moscow memorandum .
Ukrainians President Talbott visits Budapest on Thursday . He seems intent on a peaceful settlement , write Steven Pifer and Steven Pifer . Obama should agree to provide defensive arms on an expedited basis , authors say . Talbott and Pifer : Moscow has grossly violated the Moscow memorandum .