Sentence:  `` They are determined '' , Montgomery writes , `` not to be surprised again , and now <WSD>insist</WSD> on a state of readiness for war which is not only unnecessary , but also creates nervousness among other nations in the Western Alliance - not to mention such great suspicions among the nations of the Eastern bloc that any progress towards peaceful coexistence or disarmament is not possible '' . 
Meaning of the word marked with <WSD> tags:  be emphatic or resolute and refuse to budge