Tel Aviv, Apr 21 (AFP) Pentagon chief Jim Mattis said
during a visit to Israel today that there can be "no doubt"
that Syria has retained some chemical weapons and warned
President Bashar al-Assad's regime not to use them.Mattis, speaking during a press conference with Israeli
counterpart Avigdor Lieberman, declined to comment on the
number of weapons Washington believes Syria has retained.US President Donald Trump's administration carried out a
strike against a Syrian airbase earlier this month over an
alleged chemical attack on a rebel-held town.