Yes, Vichness's work is a very useful thesis, and - together with Francisco A. De La Fuente 'Dom Miguel Pereira Fojaz: His Early Career in the Mobilisation and Defence of Portugal ... 1807-1814' (1980) and Mildred L. Fryman 'Charles Stuart and the "Common Cause": the Anglo-Portuguese Alliance, 1810-1814' (1974) are the most useful secondary studies of the Portuguese side of the war in English, and good examples of just how useful unpublished theses can be ... but not many people will read forty year old unpublished theses, and Beresford - and the Portuguese - deserve a full, polished study that is attractively produced and available for the general reader. Indeed the whole Portuguese side of the war deserves not one but a number of different studies looking at different aspects of it ranging from narrowly military subjects to the impact of the war on Portuguese society and politics.