ukraine and many world leaders condemned Judgment_communication the annexation Change_of_leadership and consider Deciding it to be a violation Legality of international law and unk agreements safeguarding the territorial integrity of ukraine , including the unk accords establishing Creating the commonwealth of independent states in 1991 , the helsinki accords , the budapest memorandum on security assurances of 1994 and the treaty on friendship , cooperation and partnership between the russian federation and ukraine .