A global service of solidarity on Mar 21 was streamed live from the Kotel (Western Wall). The hour of psalms and please for the release of the hostages kidnapped by Hamas culminated with the simultaneous recitation of the Shema prayer. Also see the connection between Purim and this war.
https://www.youtube.com/watch?v=fiS5dprr0jU
https://www.youtube.com/watch?v=GFIKFnWNHzg
https://www.jns.org/thousands-attend-western-wall-prayer-service-for-the-hostages/