JERUSALEM (JTA) — New immigrants from North America arrived in Israel equipped with instructions about what to do if there were a siren warning of an incoming rocket.

The 228 olim, including 100 children making aliyah with their parents, landed Tuesday morning at Ben Gurion International Airport on a Nefesh B’Nefesh charter flight. Twenty-nine families and 54 singles were on board.

Twenty-one of the new immigrants will be joining the Israeli army as lone soldiers, according to Nefesh B’Nefesh.

The new olim, who left from Kennedy Airport in New York, received a special booklet from the Ministry of Aliyah and Immigrant Absorption on security measures, such as what to do when a Code Red siren sounds warning of incoming rockets. The immigrants also were given an English-language manual from the Home Front Command on how to talk to children about the situation.

The flight was in collaboration with the Ministry of Aliyah and Immigrant Absorption, the Jewish Agency for Israel, Keren Kayemeth LeIsrael and JNF-USA.