Iran twice battled back for a 2-2 draw with New Zealand on Monday in their frenetic opening match of a World Cup campaign that has been overshadowed by war, politics and protests. The Iranian team’s very presence at the Los Angeles Stadium had long felt uncertain, after months of military conflict between their nation and the United States. At last able to focus on the football, the Iran players twice found themselves trailing to the tournament’s lowest-ranked team, thanks to goals from New Zealand striker Elijah Just.