SELECT count(*) FROM region AS t1 JOIN party AS t2 ON t1.region_id  =  t2.region_id JOIN party_events AS t3 ON t2.party_id  =  t3.party_id WHERE t1.region_name  =  "United Kingdom" AND t3.Event_Name  =  "Annaual Meeting"
How many Annual Meeting events happened in the United Kingdom region?
[Schema (values) (types)]: | party_people |  region : region_id (text) , region_name (number) , date (text) , label (text) , format (text) , catalogue (text) | party : party_id (text) , minister (number) , took_office (text) , left_office (text) , region_id (text) , party_name (text) | member : member_id (text) , member_name (number) , party_id (text) , in_office (text) | party_events : event_id (text) , event_name (number) , party_id (text) , member_in_charge_id (text);