confederation
confederacy
suballiance
alignment
re-ally
disally
make common cause
pact
axis
league
alliance
court
join
realliance
counteralliance
combination
ally
allies
misally
supernation
partnering
meeting of minds
concurrence
entente
entente cordiale
meeting
coming together
merging
world organisation
international organisation
collaborationism
international organization
world organization
global organization
collaboration
colligation
conjugation
bloc
conjunction
junction
strange bedfellows
biarchy
antialliance
syndically
cooperability
cooperation
containment
à trois
neoassociationist
synergetic