 The mixed brigades carried out offensives against the FDLR from mid-April to mid-May but, despite the claims of the CNDP, did poorly as they had little logistical support and the FDLR fought well.The military demanded that the CNDP soldiers undergo "brassage", "mixage" having failed, and three months of standoff ensued as relations between soldiers loyal to Nkunda and loyalist troops grew increasingly tense.Matters reached a breaking point when the army chief of staff declared that the offensive against the FDLR would be halted.