How did the treaty of St Germain weaken Austria?

The Treaty of St. Germain, signed in 1919, significantly weakened Austria by dissolving the Austro-Hungarian Empire and reducing its territory, leading to the loss of substantial land and populations. The treaty restricted Austria's military capacity, limiting its army to 30,000 men, and imposed reparations that strained its economy. Additionally, it recognized the independence of various ethnic groups, further diminishing Austria's political influence and stability. This loss of territory and power contributed to a sense of national humiliation and economic hardship for the newly established Austrian Republic.