The phrase "assertive step" is correct and usable in written English.
It can be used to describe a decisive or confident action taken towards a goal or objective.
Example: "Taking an assertive step towards improving team communication can lead to better collaboration and productivity."
Alternatives: "decisive action" or "confident move".
"The fact that [Obama] has taken an assertive step forward is welcome," said Tarek Radwan, an analyst at the influential Atlantic Council, "it's just simply not enough".
When Mr Morsi sacked his intelligence chief and several other high-level security officials on August 8th, after militants had killed 16 Egyptian soldiers in Sinai, it was seen as an assertive step by a leader seeking to make his mark.
This would be by far the government's most assertive step in starting to claw back some of the enormous profits the TBTF banks have reaped, first as a result of the bailout and then from the implicit guarantee that the government would back up the debt of major banks if they ever faced bankruptcy.
But in recent months, several states have taken unusually assertive steps.
President Obama can no longer ignore calls from Congressional leaders in both parties to take more assertive steps.
Altogether, her moves are among the most assertive steps taken by any Democrat to prepare for 2020.
The new power, influence and weapons it gained in the process have roiled the region, as Saudi Arabia takes increasingly assertive steps to push back.
However, in Konstantin Markin v. Russia (decided 14 years after Petrovic), the Court took more assertive steps towards realizing shared parenting responsibilities, and the corresponding positive duty of States to provide parental leave to both fathers and mothers.
Secretary of State John Kerry is in Beijing, to meet with senior Chinese officials and make a deceptively simple demand: halt a series of increasingly assertive steps in territorial disputes with its neighbors.
Some companies are emboldened by the assertive steps the Trump administration has taken toward China in criticizing intellectual-property theft and the restrictive rules tech companies must follow to operate in the country.
Although unenthusiastic about working with his new superiors at the StB Koecher did not quit, nor did he take more assertive steps to turn himself in to American authorities.
