( CNN ) -- Daniel Treisman : Kiev is much weaker than Russia , needs aid to hold its own . He says there are powerful opinions on both sides about whether to send military aid . Aid could lead to Russian escalation but doing nothing to condone Putin 's policies , he says . Treisman : Argument for why Kiev is stronger than it has ever been .
Daniel Treisman : Kiev is much weaker than Russia , needs aid to hold its own . He says there are powerful opinions on both sides about whether to send military aid . Aid could lead to Russian escalation but doing nothing to condone Putin 's policies , he says . Treisman : Argument for why Kiev is stronger than it has ever been .