<div id="readability-page-1">TAIPEI, March 12 (Reuters) - Taiwan's three main political parties agreed on Thursday to authorise its government to sign U.S. agreements for four arms sales packages, after officials warned that Taipei would go to the back of the line if it missed the deadline. The back and forth on Taiwan's defence spending has provoked concern in the United States, as it is the most important international backer and arms supplier of the Chinese-claimed island, despite a lack of formal diplomatic ties. President Lai Ching-te's government has tried to get parliament to pass $40 billion in extra defence spending but the opposition, which controls the most seats, says the proposals are unclear, and it cannot be expected to pass &#34;blank cheques&#34; despite supporting defence. Both opposition parties have come up with their own, less expensive proposals, but the defence ministry has said the letters of offer and acceptance for the weapons with the United States have to be signed or Taiwan would lose its place in the production and delivery queue. Lawmakers from both sides agreed during a meeting of parliament's foreign affairs and defence committee that the government can still sign the agreements in advance, even if the reviews of the spending proposals are not approved in time. The weapons to be signed for include TOW anti-tank missiles, M109A7 self-propelled howitzers, Lockheed Martin ( LMT )-made Javelin missiles and the HIMARS multiple launch rocket system. On Tuesday, Defence Minister Wellington Koo told reporters the HIMARS letter expired on March 26, for 82 systems the U.S. announced as part of an $11-billion arms sale package for Taiwan. Sunday is the deadline to sign for the other weapons systems, the ministry says. Last month, a bipartisan group of 37 U.S. lawmakers voiced concern to senior Taiwan lawmakers about the stalled plans. The Trump administration has pressed allies to increase defence spending, a plank Lai and his government have enthusiastically embraced. (Reporting by Ben Blanchard; Editing by Clarence Fernandez)</div>

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台湾的三大主要政党已达成一致，允许政府签署美国的四个军售协议，以应对对国防支出延迟的担忧。这些协议包括 TOW 反坦克导弹、M109A7 榴弹炮、标枪导弹和 HIMARS 系统。签署的截止日期临近，警告称如果未能及时签署，台湾可能会失去在生产队列中的位置。美国对计划停滞表示关切，强调台湾需要增加国防支出

台湾各政党同意政府可以签署停滞的美国军售协议