Even though the Board of Rites and Lifan Yuan performed some duties of a foreign office, they fell short of developing into a professional foreign service. It was not until 1861 – a year after losing the Second Opium War to the Anglo-French coalition – that the Qing government bowed to foreign pressure and created a proper foreign affairs office known as the Zongli Yamen. The office was originally intended to be temporary and was staffed by officials seconded from the Grand Council. However, as dealings with foreigners became increasingly complicated and frequent, the office grew in size and importance, aided by revenue from customs duties which came under its direct jurisdiction.