Israel - Hamas war, is the U.S involved?

Israel-Hamas war live: Israel declares ‘state of war’ as battles rage
Israel declares “state of war” as fierce fighting between Palestinian fighters and Israeli forces continues in several areas across southern Israel, a day after Hamas’s surprise attack.
Meanwhile, Hezbollah claims responsibility for mortar strikes from Lebanon into occupied Shebaa Farms; Israel says it has responded with artillery strikes. Is it possible that the U.S in a proxy way is responsible for all this or not?