sentences:  Both sides were now exhausted.With the help of the League of Nations, on November 20 a ceasefire was negotiated, to take effect on November 21, 1920, at 9 o'clock in the morning; until then, both sides agreed to take no offensive actions.The Lithuanian 7th Infantry Regiment broke the agreement, counterattacking at Giedraičiai on the night of November 20–21, just before the ceasefire was to go into effect, persisting even after the ceasefire (until 14