am sure it does, however according to the current balance between wall breaker damage and walls hp, u may notice that wall breakers almost always success in breaking the wall even when barbed wire is on
the only change barbed wire would do is that it will disallow the wall breaker to make a big gap by breaking multiple segments, as the primary wall brick takes 100% of the damage the adjacent bricks take less damage which is under normal conditions enough to break them but with barbed wire it won't be enough to take down the adjacent walls
if u really want resistant walls u need the max lvl (white walls) as they signifcantly increase in hp, kremlin, saladin univ research and wall hp coalition (in wars) which will be enough to stop wall miners even without barbed wires