For those suggesting a professional army. This is able to work in the US because the US is a huge country that doesn’t need much defense on its borders and has a very large population. The US has 1.5 million active in its army and another half million in reserve but it is drawing from a population over 330 million. Basically the army is .5% of the population.
Israel has a population of 7 million and needs large army because it is surrounded by enemies and potential enemies on all sides. .5% of the population in the army would be 3,500 which is 10% of the size of the NYPD’s uniformed officers.
A professional army would be suicidal.