How long did he delay the additional defence for the Ukraine against Putin?
It looks like from Mid-July to September 11th.
https://www.washingtonpost.com/politics/2019/09/24/full-trump-ukraine-timeline-now/
May 20: Zelensky is inaugurated as president of Ukraine. Shortly after the inauguration, Giuliani meets with Ukrainian officials who are allies of Lutsenko and who made allegations included in Solomon’s reporting.
May 23: The administration notifies Congress that it intends to release aid money to Ukraine.
June 13: In an
interview with ABC News’s George Stephanopoulos, Trump says he might accept electoral assistance from a foreign government, if offered.
“I think you might want to listen, there isn’t anything wrong with listening,” Trump says. “If somebody called from a country, Norway, ‘We have information on your opponent'? Oh, I think I’d want to hear it.”
The chairwoman of the Federal Election Commission subsequently
points out on Twitter that this would be illegal.
June 20: In an interview with Fox News, Trump
links Ukraine and the effort to hack the Democratic National Committee during the 2016 election — a link that the whistleblower (and
recent reporting) suggests doesn’t exist.
June 21: Guiliani tweeted:
New Pres of Ukraine still silent on investigation of Ukrainian interference in 2016 election and alleged Biden bribery of Pres Poroshenko. Time for leadership and investigate both if you want to purge how Ukraine was abused by Hillary and Obama people.
July 12: Axios
reports that Trump and Director of National Intelligence Daniel Coats are at odds, with Trump telling confidants that he wants to remove Coats from his position.
July 18: Trump’s decision to withhold nearly $400 million in aid to Ukraine is
communicated to the State and Defense departments. Members of Congress are told that the hold is part of an “interagency delay.”
July 19: Ambassador Volker
texts Giuliani to connect him to a Zelensky aide named Andrey Yermak.
July 22: Shokin
tells The Post that he was removed over the Biden issue.
“I will answer that the activities of Burisma, the involvement of his son, Hunter Biden, and the [prosecutor general’s office] investigators on his tail, are the only, I emphasize, the only motives for organizing my resignation,” he says. Other Ukrainian officials have cast doubt on this and said the investigation had long been dormant when Shokin was removed.
Yermak and Giuliani schedule a meeting in early August, according to Giuliani.
July 23. OMB reiterates that aid to Ukraine is suspended, per Trump.
July 24: Mueller
testifies before Congress about his report and its findings.
July 25: Trump and Zelensky speak on the phone. As we later find out from
a rough transcript released by the White House, Trump repeatedly notes how “good” the United States is to Ukraine and then proceeds to ask Zelensky to open two investigations -- one involving CrowdStrike, an Internet security company that probed the Democratic National Committee hack in 2016, and the other involving the Bidens.
“I would like you to do us a favor though because our country has been through a lot and Ukraine knows a lot about it,” Trump says before floating the CrowdStrike investigation.
He later adds: “The other thing, there’s a lot of talk about Biden’s son, that Biden stopped the prosecution and a lot of people want to find out about that so whatever you can do with the Attorney General would be great. Biden went around bragging that he stopped the prosecution so if you can look into it ... It sounds horrible to me.”
Trump repeatedly suggests Attorney General William P. Barr will be involved in working with the Ukrainian government on the investigation.
Zelensky tells Trump that his yet-to-be-named new prosecutor general “will look into the situation, specifically to the company that you mentioned in this issue" -- referring to Burisma.