london britain want close defence cooperation european union brexit countries outside union accord document set vision deep security partnership aim nudge talk forward state britain unconditionally commit maintain european security government say want contribute military assets eu operations leave bloc may offer continue exchange classify information pledge detail government sixth future partnership paper part efforts counter criticism eu officials prepare negotiations unravel 40 years union underline britain large defence development budget europe officials press consider one strong arguments government offer defence security support eu time increase threats international instability uk remain unwavering commitment uphold european security defence secretary michael fallon say statement britain role continent defence never vital say britain deploy troop baltic state counter resurgent russia work eu tackle piracy horn africa work joint defence project eurofighter typhoon aircraft eu executive say would analyse british proposal stress policy open negotiations future relationship britain progress settle term british withdrawal bloc eu will establish partnerships uk areas unrelated trade particular fight terrorism international crime well security defence foreign policy european commission chief spokesman margaritis schinas tell reporters pro-brexit supporters argue eu referendum last year close defence cooperation bloc member state another sign close union tuesday veterans britain group say paper grave mistake tuesday paper intend conversation-starter rather concrete negotiate position set areas information personnel exchange britain could contribute european security subject negotiations britain suggest defence cooperation could use leverage talk far move slowly bogged arguments divorce bill usefulness leverage push talk forward could limit acknowledgement paper britain also benefit security intelligence share meet share threats maintain value continuity areas heart joint foreign policy defence security development infrastructure vital paper say london seek `` deep security partnership `` eu brexit