washington/havana unite state cuba conclude substantive second round talk multibillion-dollar claim one another washington agree hold regular meet matter state department official say friday former cold war foes first meet outline respective claim december havana part deepen detente issue one key complex obstacles normalization relations two countries second meet substantive explore detail claim need resolve also review practice countries solve claim state department official tell reporters condition anonymity side agree would regular meet set date yet next meet place havana accordance bilateral protocol official say cuba want least 121 billion reparations economic damage cause u.s. trade embargo least 181 billion human damage unite state award firm individuals 1.9 billion worth claim cuba factories farm home assets nationalize island fidel castro rebel come power 1959. claim roughly worth billion include percent annual interest cuban government reach settlements countries expropriate assets cut negotiations unite state bilateral relations sour 1960s many nationalize company long exist individual claim pass heirs state department official say unite state also claim 2.2 billion court judgments outstanding cuba hundreds millions former government mine interest island cuba foreign ministry say statement two countries continue share information respective claim aim prepare process negotiation u.s. cuba hold 'substantive second round talk claim