 The time scale for his departure was not discussed at the time, and Cogny continued to serve under Navarre, with the relationship between the two degrading significantly.Cogny would continue attempts to with-hold certain reinforcements from Dien Bien Phu or relating relief efforts if he believed it would undermine his strength in the Tonkin Delta.On 2 May, Navarre went as far to threaten Cogny with an investigation into his 'defeatist' press releases.