  We discuss what happens when a field receiving an Aharonov-Bohm (AB) phase
develops a vacuum expectation value (VEV), with an example of an Alice string
in a $U(1) \times SU(2)$ gauge theory coupled with complex triplet scalar
fields. We introduce scalar fields belonging to the doublet representation of
$SU(2)$, charged or chargeless under the $U(1)$ gauge symmetry, that receives
an AB phase around the Alice string. When the doublet develops a VEV, the Alice
string turns to a global string in the absence of the interaction depending on
the relative phase between the doublet and triplet, while, in the presence of
such an interaction, the Alice string is confined by a soliton or domain wall
and therefore the spontaneous breaking of a spatial rotation around the string
is accompanied. We call such an object induced by an AB phase as an ``AB
defect'', and argue that such a phenomenon is ubiquitously appearing in various
systems.
