If you decide to enlist, you can do it on your own individually by making Aliyah(obtaining Israeli citizenship)*. The army will summon you to your first call up, the tzav rishon, usually between six month to a a year after having madeAliyah. If you would like to make a request to have your tzav rishon earlier, please see – Getting Tzav Rishon.
You can also enlist through a variety of programs. For a list of specific programs, please see the Army Service Programs page. If you sign up for one of the army programs like Garin Tzabar or Mahal, you will do all of your pre-army tests and enlist within two to three months of arriving in Israel.
In order to join the IDF, you must have the right to make Aliyah. This means that you must have at least one Jewish grandparent. If you are not Jewish, and would like to enlist into the IDF, you must convert before making Aliyah or volunteer through Mahal.