Hezbollah leader Sheik Hassan Nasrallah made his first appearance since the start of clashes with Israel, saying Sunday that his group had "complete strength and power" and would act without limits in future attacks. Hezbollah had "no choice" but to hit the northern Israeli city of Haifi with rockets Sunday after Israel struck civilians in Lebanon. "As long as the enemy acts without limitations, it is our right to act similarly," he said.Speaking on the militant group's Al-Manar television station, Nasrallah denied an Israeli accusation that it was receiving help from Iran that included advanced missiles. Nasrallah said he taped the message at 1 p.m. Sunday, an apparent attempt to disprove Israeli media reports that he was wounded in the pre-dawn bombing of his Beirut headquarters by Israel. The message aired about 7 p.m. He urged global Muslim support for his guerrillas, who he said are "longing" to fight Israeli forces in any ground invasion. He promised "surprises."