Officers used a flashbang grenade to stun Meller and storm the room after negotiation efforts did not succeed.

Both negotiation efforts ultimately failed; however, General Marshall awarded Price a second Bronze Star for his support.

Most arguments were settled by negotiated compromise or, when all negotiation efforts failed, by hand-to-hand combat.

Catherine's ambiguous negotiation efforts ultimately fell through.

Despite his negotiation efforts, Howard was unpopular among Virginians.

Sen. Juan Miguel Zubiri called on the government to begin the negotiation efforts.

His negotiation efforts initially failed and American tanks bombarded the building, first warning the hostages within to take cover.

So strongly did he feel about this matter that he cultivated negotiation efforts that some regarded as approaching insubordination.

It must be clear that failure in this negotiation effort will not be without consequences.

A lot of negotiation effort had to be spent on turning this idea down, effort that could otherwise have been used constructively to improve the result.