As an AI developed by OpenAI, I don’t have real-time information, but let me give you possible context based on the aspects you mentioned. If UK Prime Minister Boris Johnson urges US President Joe Biden to intervene in ICC (International Criminal Court) plans to issue an arrest warrant for Israeli Prime Minister Benjamin Netanyahu, it could stem from international politics and diplomatic relations.
The ICC is an independent institution that handles worldwide criminal justice matters. A prime minister like Johnson may request the American president’s intervention due to the various political, diplomatic, and historical relationships the US has with Israel. However, it’s essential to mention that ICC operates based on international law, focusing on crimes against humanity, war crimes, and genocide.
For real up-to-date information concerning the subject, I would recommend you to check the latest news from reliable sources.