If you’ve been listening to the Trump administration this week, you would be forgiven for being confused about who started the war, why America got involved and what the end game is. This week, the foreign policy expert Ali Vaez tells Rachel Leingang what it was like to take part in war game exercises for the Pentagon and how they compare with what he has seen play out this week. Then the Guardian’s Andrew Roth talks us through the inner chaos in the Trump administration and Congress over Trump’s decision to go to war with Iran