Indicate by check mark whether the registrant files or will file
annual reports under cover Form 20-F or Form 40-F.
Form 20-F ☒ Form 40-F ☐
Pursuant to the requirements of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
EXHIBIT 99.1

DEFSEC Technologies Announces Closing of CAD$2.5
Million Registered Direct Offering
OTTAWA, ON, June 26, 2026 /CNW/ - DEFSEC Technologies
Inc. (TSXV: DFSC) (TSXV: DFSC.WT.U) (NASDAQ: DFSC) (NASDAQ: DFSCW) ("DEFSEC" or the "Company"), today announced the
closing of its previously announced registered direct offering for the purchase and sale of 673,006 common shares at a purchase price
of CAD$3.74 (US$2.63) per common share . In a concurrent private placement, the Company issued unregistered warrants to purchase up to
673,006 common shares at an exercise price of CAD$4.39 per share that are immediately exercisable upon issuance and will expire five years
following the date of issuance.
H.C. Wainwright & Co. acted as the exclusive placement
agent for the offering.
The gross proceeds to the Company from the offering
were approximately CAD$2.5 million before deducting placement agent fees and other offering expenses payable by the Company. The Company
intends to use the net proceeds from the offering for working capital and general corporate purposes.
In connection with the offering, the Company paid
a cash fee to the placement agent in an amount of CAD$188,778 and issued to the placement agent or its designees 50,475 common share purchase
warrants entitling the holder to acquire one common share of the Company for a period of five years from the commencement of sales of
the offering at an exercise price of CAD$4.675 per common share.
The common shares (but not the unregistered warrants and the common shares
underlying the unregistered warrants) described above were offered by the Company pursuant to a "shelf" registration
statement on Form F-3 (File No. 333-277196) that was filed with the Securities and Exchange Commission (the "SEC")
on February 20, 2024 and declared effective by the SEC on March 4, 2024. The offering of the common shares was made
only by means of a prospectus, including a prospectus supplement, forming a part of the effective registration statement. A final prospectus
supplement and accompanying prospectus relating to the registered direct offering were filed with the SEC. Electronic copies
of the final prospectus supplement and accompanying prospectus may be obtained on the SEC's website at http://www.sec.gov or by
contacting H.C. Wainwright & Co., LLC at 430 Park Avenue, 3rd Floor, New York, New York 10022, by phone at (212) 856-5711 or e-mail
at placements@hcwco.com.
The unregistered warrants described above were offered
in a private placement under Section 4(a)(2) of the Securities Act of 1933, as amended (the "Securities Act"), and/or Regulation
D promulgated thereunder and, along with the common shares underlying such unregistered warrants, have not been registered under the Securities
Act, or applicable state securities laws. Accordingly, the unregistered warrants and underlying common shares may not be offered or sold
in the United States, or to or for the account or benefit of U.S. persons (as defined in Regulation S under the Securities Act) except
pursuant to an effective registration statement or an applicable exemption from the registration requirements of the Securities Act and
all applicable state securities laws.
This press release does not constitute an offer to
sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any jurisdiction in which
such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such jurisdiction.
About DEFSEC
DEFSEC (TSXV: DFSC) (TSXV: DFSC.WT.U) (NASDAQ:
DFSC) (NASDAQ: DFSCSW) (FSE: 62UA) develops and commercializes breakthrough next-generation tactical systems for military and security
forces. The company's current portfolio of offerings includes digitization of tactical forces for real-time shared situational awareness
and targeting information from any source (including drones) streamed directly to users' smart devices and weapons. Other DEFSEC products
include countermeasures against threats such as electronic detection, lasers and drones. These systems can operate stand-alone or integrate
seamlessly with OEM products and battlefield management systems, and all come integrated with TAK. The company also has the established
ARWEN® less-lethal munitions platform and a new proprietary less-lethal product line branded PARA SHOTTM with applications
across all segments of the less-lethal market, including law enforcement. The Company is headquartered in Ottawa, Canada.
For more information, please visit https://www.defsectec.com
Forward-Looking Statements
This press release contains "forward-looking
statements" and "forward-looking information" within the meaning of Canadian and United States securities laws (collectively,
"forward-looking statements"), which may be identified by the use of terms and phrases such as "may", "would",
"should", "could", "expect", "intend", "estimate", "anticipate", "plan",
"foresee", "believe", or "continue", the negative of these terms and similar terminology, including references
to assumptions, although not all forward-looking statements contain these terms and phrases. Forward-looking statements made by DEFSEC
in this press release include, but are not limited to, statements regarding the anticipated use of proceeds from the offering. Forward-looking
statements are provided for the purpose of assisting the reader in understanding us, our business, operations, prospects and risks at
a point in time in the context of historical and possible future developments and therefore the reader is cautioned that such information
may not be appropriate for other purposes. Such forward-looking statements are based on the current expectations of DEFSEC's management
and are based on assumptions and subject to risks and uncertainties.
Although DEFSEC's management believes that the
assumptions underlying such forward-looking statements are reasonable, they may prove to be incorrect. The forward-looking statements
discussed in this press release may not occur by certain specified dates or at all and could differ materially as a result of known and
unknown risk factors and uncertainties affecting DEFSEC, including, but not limited to: the intended use of proceeds from the Offering;
general economic conditions; fluctuations in securities markets; and other factors beyond the control of DEFSEC. Although DEFSEC has attempted
to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking
statements, there may be other factors that cause actions, events or results to differ from those anticipated, estimated or intended.
No forward-looking statement can be guaranteed. Except as required by applicable securities laws, forward-looking statements speak only
as of the date on which they are made and DEFSEC undertakes no obligation to publicly update or revise any forward-looking statements,
whether as a result of new information, future events or otherwise.
Neither the TSX Venture Exchange nor its respective
Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy
or accuracy of this release.
The offering remains subject
to the final approval of the TSX Venture Exchange.
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SOURCE DEFSEC Technologies Inc
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%CIK: 0001889823
For further information: Sean Homuth, President and Chief Executive
Officer, homuth@defsectec.com, 613 863-1255; Jennifer Welsh, Chief Financial Officer and Chief Compliance Officer, welsh@defsectec.com,
613 241-1849 ext 102
CO: DEFSEC Technologies Inc
CNW 13:44e 26-JUN-26