The assassination attempt was partially conceived as revenge for communist massacres that killed hundreds of Iraqi nationalists in 1959 .
Which Qasim 's government allowed to take place in the aftermath of the 1959 Mosul uprising .
The assassination attempt was partially conceived as revenge for communist massacres that killed hundreds of Iraqi nationalists in 1959 and which Qasim 's government allowed to take place in the aftermath of the 1959 Mosul uprising .