United Enemies: The Problem of Sculpture in Britain in… December 26, 2011November 28, 2012 by danpotts Aesthetica Magazine Blog. United Enemies: The Problem of Sculpture in Britain in the 1960s and 1970s. Henry Moore Institute. Leeds. Tactile & Sensory Exploration. Jaume Plensa. Yorkshire Sculpture Park Mark Power: The Sound of Two Songs. Impressions Gallery. Bradford.