As the United States spent years arguing and battling over ”Don’t Ask, Don’t Tell,” we were often reminded how so many of our allies, such as Israel, had already allowed open service by gays and lesbians without ill effects. True, as far as it goes, but that doesn’t mean that each of those armies was a utopia for gay soldiers. Yossi & Jagger is a love story set in the Israeli army between a commanding officer, Yossi (Ohad Knoller), and his second-in-command, Jagger (Yehuda Levi). This is not director Eytan Fox’s deepest or best film — that would be, so far, the brilliant Walk on Water — but it is an important and stirring exploration of love in the military. It may not track well to the American military experience — Israel is a nation of compulsory military service for all, which changes the tenor of service — but it is a sweetly disarming tale that earns its right to tug at your heartstrings.