What is the legal status of serving in a foreign army?
At any rate, if you read accounts of the various wars Israel has been in, one of the deciding factors has always been the sloppy preparation on the Arabs' side.
One, they draft in Israel and many, with dual American-Israeli citizenship, go back to serve.
And considering America sends them 2 billion each year, plus all the tax revenues they have, they have more than enough to invest in advanced military tech.
Congress tried to make serving in a foreign military cause you to loose your citizenship, but that was struck down by the supreme court. The actual case where it was struck down involved a guy with dual US/Israeli citizenship voting in Israel, but the law that was struck down was the same one that tried to punish serving in a foreign military.
Now, keep in mind that it might still be illegal (with most likely an exception written in for Israel), but at least you won't loose your citizenship for it.
At any rate, if you read accounts of the various wars Israel has been in, one of the deciding factors has always been the sloppy preparation on the Arabs' side.