US President George W. Bush Monday warned Iran and Syria that the international community would not allow Lebanon to fall under foreign domination again, as he vowed to shore up the Lebanese army.  Bush reaffirmed Washington's support for Prime Minister Fuad Siniora amid deadly violence pitting mainly Sunni supporters of the government and militants loyal to the Shiite Hezbollah-led opposition. "I strongly condemn Hezbollah's recent efforts, and those of their foreign sponsors in Tehran and Damascus, to use violence and intimidation to bend the government and people of Lebanon to their will," Bush said in a statement. "The international community will not allow the Iranian and Syrian regimes, via their proxies, to return Lebanon to foreign domination and control," he said.