Classical unified field theories to isospin rather than electromagnetism; this is related to a discrete (or ""internal"") symmetry known to Einstein as "displacement field duality". Einstein became increasingly isolated in his research on a generalized theory of gravitation, and most physicists consider his attempts ultimately unsuccessful. In particular, his pursuit of a unification of the fundamental forces ignored developments in quantum physics (and vice versa), most notably the discovery of the strong nuclear force and weak nuclear force. Inspired by Einstein's approach to a unified field theory and Eddington's idea of the affine connection as the sole basis for differential geometric structure for space-time,
Operation Unified Resolve Peshawar. Anti-coalition forces, led by former Afghan prime minister Gulbuddin Hekmatyar, have attacked coalition forces with their usual retinue of rockets, mines, and bobby traps. Hekmatyar has been organizing alliances between the remaining anti-coalition forces in the area and increasing their coordination. In addition to hunting the Taliban and al-Qaeda fighters, Operation Unified Resolve also distributes humanitarian assistance to the Afghan people in the nearby valleys. Operation Unified Resolve Operation Unified Resolve is an air and ground operation to flush out and trap al-Qaeda fighters hiding in the eastern Afghanistan provinces. Launched on 23 June 2003, Operation Unified Resolve is