International Criminal Court Prosecutor Karim Khan's request for an arrest warrant against Israeli Prime Minister Benjamin Netanyahu has created a diplomatic quandary for some key member states: How can they be supportive of both Israel and the ICC?

Khan's move on Monday, the first attempt to go after a sitting, Western-backed head of state, has yet to be reviewed by ICC judges who can amend, reject or approve it. But his step into the globally divisive Israeli-Palestinian conflict has some of the ICC's vocal backers questioning the extent of their loyalty.

Prosecutors had flagged plans ahead of time to some capitals, including Paris, London and Berlin, enabling governments to coordinate reactions. Still, many declined to say what they will do in the event that warrants over the war in Gaza are issued against Israeli leaders.