Expansion of Macedonia under Philip II a significant problem, blocking the main route into Greece. However, a second route into central Greece was available. In 480 BC, during the Battle of Thermopylae, the Persian king Xerxes had sent his army via a mountain track (the "Anopea") to outflank the pass. From this track, on the western side of Mount Kallidromon, another road led off and descended in Phocis. In 480 BC, a thousand Phocian troops were stationed above Thermopylae to guard the road and prevent a Persian assault on Phocis (though they notably failed to prevent the Persians using "Anopea"). However, in 339 BC, the Greeks
British Soldierflies and Their Allies scientific reference work for a whole group of flies. It contains a set of photographic plates by David Wilson. British Soldierflies and Their Allies British Soldierflies and their allies (an illustrated guide to their identification and ecology) is a book by Alan E. Stubbs and Martin Drake, published by the British Entomological and Natural History Society in 2001. A second edition was published in 2014. It is a sequel to an earlier volume, "", and covers the following families of flies, which collectively are known as the "Larger Brachycera": Acroceridae, Asilidae, Athericidae, Bombyliidae, Rhagionidae, Scenopinidae, Stratiomyidae, Tabanidae, Therevidae, Xylomyidae and