join (v.) 1
encounter, come together, meet in conflict
1H4 V.i.85 [Prince Hal to Worcester] there is many a soul / Shall pay full dearly for this encounter / If once they join in trial
3H6 I.i.15 [Montague to all, of Wiltshire] Whom I encountered as the battles joined
3H6 II.i.120 [Warwick to Edward and Richard, of fighting the Queen] Our battles joined, and both sides fiercely fought
R3 V.iii.313 [King Richard to all] March on, join bravely