From the beginning, the alliance was much more valuable to the Commonwealth than to Prussia. Soon after the treaty was signed, the international situation, and changes within the Commonwealth, made the treaty much less valuable to the Prussian side. Meanwhile, the Commonwealth embarked on a series of major internal reforms, seeing the alliance as a guarantee that it had the backing of a powerful neighbour in the process, but in fact, Prussia felt that those reforms were not in its best interest and felt threatened by them. When Russia invaded the Commonwealth in May 1792, Prussia refused a request to honour the alliance and intervene, arguing that it was not consulted with regard to the 3 May Constitution, which invalidated the alliance. A few months later, in 1793, Prussia aided Russia in the suppression of the Kościuszko Uprising.