 Complete the following phrase:  As a town on the Moldavian-Wallachian border, Focșani developed into an important trade center halfway between the Russian Empire and the Balkans. A congress between Imperial Russian and Ottoman diplomats took place near the city in 1772. Near the town, the Ottomans suffered a severe defeat at the hands of the allied forces of the Habsburg Monarchy under Prince Frederick Josias of Saxe-Coburg-Saalfeld and Imperial Russia under Alexander Suvorov in 1789 see 