An Italian arms multinational has received more than £6 million from the Scottish Government, which has also given money to other arms firms.
Public sector workers will be "shocked and appalled" to learn of the arms industry investments, say critics.
28 firms from Scotland due to attend an arms fair dubbed a “festival of violence” - including a US arms giant with a factory in Fife.
Critics of the arms trade will appeal a High Court decision which allows the UK Government to continue exporting arms to Saudi Arabia.
The UK trained an air force at the centre of war crime allegations in Yemen how to carry out airstrikes with smart bombs.
The High Court will hear a judicial review into UK weapons exports to Saudi Arabia for use in Yemen’s war.
Just three people in Scotland have been identified as at risk of being "drawn into terrorism" in Scotland since 2011.
US arms giant with a factory in Fife linked to another alleged war crime in Yemen.
An SNP MP who criticised UK arms sales to Saudi Arabia has received more than £400 worth of hospitality from a defence lobby group.