Tentative reforms began in the late 18th century; however, any idea of reforming the Commonwealth was viewed with suspicion not only by its magnates but also by neighbouring countries, which were content with the state of the Commonwealth's affairs and abhorred the thought of a resurgent and democratic power on their borders. With an army numbering around only 16,000, Poland found that its neighbours could easily intervene directly: the Imperial Russian Army numbered 300,000, the Prussian Army and the Imperial Austrian Army 200,000. All of those powers had already annexed about a third of the Commonwealth territory and population ( and four to five million people) in the First Partition of Poland in 1772–1773.