The conflict between Israel and Iran has entered its sixth day, with Israel killing several top Iranian military leaders and nuclear scientists while urging the United States to get more directly involved to help take out Tehran’s nuclear program. Israeli Prime Minister Benjamin Netanyahu has defended his country’s attacks as seeking to eliminate a nuclear threat from Iran, which has long maintained that its uranium enrichment program is meant for civilian purposes. President Trump is weighing U.S. strikes among a range of options targeting Iranian sites. The president has recently edged closer toward U.S. involvement in the Middle East conflict, prompting pushback from Moscow, a top ally of Iran.