<Tr> <Td> Zand dynasty </Td> <Td> 1751--1794 </Td> </Tr> <Tr> <Td> Qajar dynasty </Td> <Td> 1789--1925 </Td> </Tr> <Tr> <Td> Modern period (show) <Table> <Tr> <Td> Pahlavi dynasty </Td> <Td> 1925--1979 </Td> </Tr> <Tr> <Td> Interim Government of Iran </Td> <Td> 1979--1980 </Td> </Tr> <Tr> <Td> History of the Islamic Republic of Iran </Td> <Td> 1980--present </Td> </Tr> </Table> </Td> </Tr> <Table> <Tr> <Td> Pahlavi dynasty </Td> <Td> 1925--1979 </Td> </Tr> <Tr> <Td> Interim Government of Iran </Td> <Td> 1979--1980 </Td> </Tr> <Tr> <Td> History of the Islamic Republic of Iran </Td> <Td> 1980--present </Td> </Tr> </Table>

When was the last time iran started a war