Ceremonies were held to celebrate victories.
Senshō o iwau shukugakai ga hirakareta.
indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.
to congratulate; to celebrate; to observe (a festival)
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
to open; to undo; to unseal; to unpack; to bloom; to unfold; to spread out; to open (for business, e.g. in the morning); to be wide (gap, etc.); to widen; to hold (meeting, etc.); to give; to open; to found (nation, dynasty, sect, etc.); to open (a new business); to set up; to establish; to start; to open (ports, borders, etc.); to open (an account); to open up (new land, path, etc.); to clear; to develop; to open (a file, etc.); to extract (root); to reduce (equation); to cut open (fish); to change (kanji into hiragana); to flare (e.g. skirt); to slacken (into a poor posture)
Readings: セン、 いくさ、 たたか.う、 おのの.く、 そよ.ぐ、 わなな.く
Meanings: war, battle, match
Readings: ショウ、 か.つ、 -が.ち、 まさ.る、 すぐ.れる、 かつ
Meanings: victory, win, prevail, excel
Readings: シュク、 シュウ、 いわ.う
Meanings: celebrate, congratulate
Meanings: congratulations, joy
Readings: カイ、 エ、 あ.う、 あ.わせる、 あつ.まる
Meanings: meeting, meet, party, association, interview, join
Readings: カイ、 ひら.く、 ひら.き、 -びら.き、 ひら.ける、 あ.く、 あ.ける
Meanings: open, unfold, unseal