Some 15,000 Messianic Jews currently live in Israel, but if you saw one on the street you would almost certainly fail to recognize any difference. They honor Jewish circumcision, bar-mitzvah, and wedding ceremonies, but believe Jesus is the messiah.
The small community of Yad Hashmona, near Jerusalem, is home to a number of Messianic-Jewish families. They believe in Jesus – or Yeshua, as they call him – and in the teachings of the New Testament as well as the old. They are Jews in every sense, but for the most part keep this side of their faith to themselves. When these families gather for the Shabbat meal, however, Jesus is the guest star at their table.
Around 350,000 Messianic Jews live in the US, and one would be just as hard-pressed to recognize them there as in Israel. Some are Orthodox, and dress as the haredim do, while others are traditional and wear a yarmulke or no religious symbol at all. They are for the most part Zionists, and see IDF service as a top priority. In the army they serve as pilots, commanders, and elite unit members, but usually make sure to keep their messianic beliefs under wraps.
The fact that Jesus was Jewish is generally agreed upon, but what happened after his death is subject to rancorous theological debate. History books tend to recall the first century as a time of rebellion and prophets in Jewish antiquity, and this was also Christianity's first chapter, bringing about pre-historic inter-religious quarreling and anti-Semitism.