action amphibious operations bipartisanship coaction coadjuvancy coadministration coagency cochairmanship codirectorship collaboration collaborativeness collectivism collusion combined operations commensalism common effort common enterprise communalism communism communitarianism community complicity concert concord concordance concurrence cooperation cooperativeness dry run duet duumvirate ecumenicalism ecumenicism ecumenism esprit esprit de corps fellow feeling fellowship fluid operations harmony joining of forces joint effort logistics maneuver maneuvers mass action military operations minor operations mission morale movement mutual assistance mutualism mutuality octet operation operations overseas operations pooling pooling of resources pulling together quartet quintet reciprocity septet sextet solidarity staff work symbiosis synergism synergy team spirit teamwork trio triumvirate troika united action war game war plans