Each country has its own rules regarding treaties, so it totally depends on the country.
For example, in the US, the President has the power to negotiate treaties, but they must be approved by at least two thirds of US Senators present.
No it does not only a treaty
does not require the approval of the senate
An executive agreement does not require Senate approval.
An executive agreement does not require Senate approval.
An executive agreement does not require Senate approval.
An executive agreement is an example of an action that does not require congressional approval. It is an agreement by heads of government, and is less formal than a treaty.
An executive agreement or understanding with a foreign leader might serve the immediate purpose of a treaty and lead to a formal treaty between the respective nations. A treaty requires the approval of the Senate and may be much harder to negotiate than an agreement between two men. (It also may be easier to break or worm out of if the situation changes or new information comes to light.)
2/3 of senators
As of January 2003, FHA no longer requires PUD approval
The Treaty of Paris ended the armed conflict (hostilities).
executive agreement
An Executive Agreement does not require consent by Congress. An Executive Agreement is a pact made by the President with the head of a foreign state (country). It is a binding international pact that abides by the force of law but which, unlike a treaty, does not require Congressional consent to take place.