Iranian President Mahmoud Ahmadinejad said moves against developing governments are doomed to failure, ISNA reported.
"We have a comprehensive plan to expand Iran-Venezuela ties in political, economic and social sections," Ahmadinejad said in a joint press conference with his Venezuelan counterpart Hugo Chavez in Tehran on Wednesday night.
"Our cooperation will be significant and influential, we are firm to stand against domineering and bullying powers, dismantle the ruling cruel system in the world and establish a new system based on dignity and justice," Ahmadinejad noted.
He then condemned domineering powers' interference in Latin America and Venezuela, expansion of militarism and bullying approach toward Latin American nations.
Chavez on his part said, "we declare that we support Iran's independence and sovereignty and we call for other countries seriously to respect rights of Iranian nation."
"Iran and Venezuela oblige themselves to create a multipolar world through boosting bilateral relations."
"Imperialism will fail to limit Islamic Revolution of Iran," Venezuelan President continued.
Iran and Venezuela also signed 11 Memoranda of Understanding (MoU) on industry, petrol, trade, LNG, energy, textile, construction of refinery in Syria, production of 6,000 tones of magnesium annually in Venezuela and founding joint trade company.
Venezuelan President wrapped up his two-day visit to Tehran on Wednesday night.
He has already arrived in Iran 8 times.
Chavez stepped in Russia, Ukraine and Belarus ahead of his trip to Iran.