  The role of anisotropic components on the dark energy and the dynamics of the
universe is investigated. An anisotropic dark energy fluid with different
pressures along different spatial directions is assumed to incorporate the
effect of anisotropy. One dimensional cosmic strings aligned along x-direction
supplement some kind of anisotropy. Anisotropy in the dark energy pressure is
found to evolve with cosmic expansion at least at late times. At an early
phase, the anisotropic effect due to the cosmic strings substantially affect
the dynamics of the accelerating universe.
